Showing posts with label birding Southern California. Show all posts
Showing posts with label birding Southern California. Show all posts

Friday, April 29, 2016

Baby Birds and Protective Parents


The California towhee is one of my favorite birds. They are the first bird we hear in the morning and the last species to stop for a nightcap each evening.

Watch a CA towhee vocalizing and guarding its chick.

HD

CA towhee parents move their chicks out of the nest early to avoid snakes and other bird predators that might easily find their low-built nests. Baby CA towhee on the ground. Tiny Towhee in the grass. I've had numerous calls from people thinking that these chicks were abandoned. 

Nothing could be further from the truth. Most birds are excellent parents. Birds leave young chicks in a protected place and come back to feed them. From hummingbirds to hawks, I've had youngsters hanging out during the day while their parents are off looking for food. Before you try to "help," wait and let the avian parents do their job. You might even be rewarded with seeing a private moment between bird parents and offspring.

Thursday, December 03, 2015

Finding The Positive in Los Angeles - The River and Local Wildlife

Los Angeles River west of Balboa Blvd.
On a day like today, following another mass assault on our own humanity, it can be difficult to see the world as a positive place. But we all have a choice and I choose to reach out to people making positive differences in the world. 

Los Angeles River just above Sepulveda Dam
Walking the Los Angeles River we have seen the neglected waterway being embraced and re-imagined as part of our communities. The neighborhoods we have walked through so far have been as varied as the River. We all should step out of our own neighborhoods more often to understand the lives of people we think are different from ourselves. The L.A. River holds the potential of uniting disparate peoples across a large city.

The River also can connect disengaged people with the natural world. The section through the Sepulveda Basin is wildness contained, a place to experience wildlife in the city.

HD

Channel Island fox
The non-profit that I work with, Friends of the Island Fox (a program of the Channel Islands Park Foundation) has just wrapped up a year of numerous successful efforts to support island fox conservation. The Channel Island fox has made a strong recovery from the brink of extinction because of the determined efforts of local people.

There is much to celebrate, but too often it is overshadowed by mindless tragedy caused by people. Today I reject fear and pledge to reach out and build connections with more of my neighbors. Safety doesn't come through weaponry, it comes through bonds of respect and understanding.

Monday, February 16, 2015

What Kind of Junco?

My friend Douglas Welch of a Gardener's Notebook recently asked me this question:  

What's the current name for, what I knew as, the Oregon Junco?

male Oregon dark-eyed junco
Sometimes it does seem like bird names are constantly in flux. However, this is a different situation. There are several, what Sibley refers to as "regional populations" of dark-eyed juncos.

Dark-eyed juncos (Junco hyemalis) are found across North America. These are migratory birds traveling long or short distances in seasonal north-south migrations. Some regional populations, such as in southern California, migrate within a region by elevation. These forest birds don't like cold, but they aren't keen on hot weather either. They tend toward a moderate climate. (I think I might be a junco.) Most dark-eyed juncos spend the winter in a moderate climate, then migrate north or higher in elevation to breed in a forested area.

The most common dark-eyed junco in California and along the west coast is the Oregon dark-eyed junco. These are the small sparrow-type birds with brownish bodies, white bellies, and a distinctive blackish hood on their head. The males hood is more distinctive, females may appear to have a more gray or "sooty" hood.

Occasionally, we also see slate-colored dark-eyed juncos in the Los Angeles area. We have had a slate-colored junco visit for a short time in 2012 and again this February. These juncos are slightly larger. Their appearance is similar except the dark coloring tends to be more all-over slate gray and the hood is less defined or not defined at all. This junco population is found across the U.S. during the winter and summers in the Taiga forests of Canada, Alaska, and the northeastern U.S. 

In our southern California backyard, we have 2-10 Oregon dark-eyed juncos that spend the winter in the native habitat we've tried to recreate. They tend to arrive late September or early October. In 2014 and this year they arrived Oct. 15 and Oct. 7 respectively. They stay through March. (However, in 2013 they stayed until the first week in April and in 2014 one lingered until May 1.) Initially we had two males that came in 2000. Now we see males and females, but always more males. These individuals always leave to breed somewhere else. They may be only migrating to spend the summer at higher elevations in our neighboring Santa Monica Mountains or they may be going as far as southern Alaska and Canada's Yukon Territory.

I was thrilled in 2013 to see a female Oregon dark-eyed junco raising two chicks in Alaska. I'd never seen dark-eyed junco chicks before. This industrious mom was leading her two flightless youngsters along the ground through the black spruce forest. She was constantly catching insects and stuffing them into open mouths. There was no male around. All of the junco families I saw were single-mom affairs.

In 2014 we saw pink-sided dark-eyed juncos in Teton and Yellowstone National Parks. White-winged, red-backed, and gray-headed dark-eyed juncos are all still on my "to see" list.

For more on identifying dark-eyed juncos check out Cornell's All About Birds.

Friday, February 13, 2015

Great Backyard Bird Count - Go Out & Count Birds!

Can you see the nine band-tailed pigeons (Patagioenas fasciata) in the eucalyptus tree?

Today, Friday, February 13 marks the first day of the annual Great Backyard Bird Count 2015. All around the world people are out counting the birds in their yards, neighborhoods, parks and wild places. The real world has no fences! The Santa Monica Mountains and the Pacific Ocean are my backyard!

It's easy and important. When you count and enter your data on-line at http://gbbc.birdcount.org you are contributing to science and the world's knowledge of bird populations and migration. How is the snow in Massachusetts impacting birdlife? Will they see fewer birds than the last 18 years of GBBC?

This February day in southern California is going to be in the 80s. Are our winter migratory birds still here or have they left?

white-throated sparrow
This morning in our yard I saw 87 individual birds from 22 species, including this white-throated sparrow (Zonotrichia albicollis) which is somewhat rare for the Los Angeles area. The white-throated sparrow typically is a winter migrant to the south-eastern U.S. Some winters, a few show up here. E-bird and the Great Backyard Bird Count help to track these occurrences. Are more white-throated sparrows spending the winter in southern California? Is their range changing?

How can you participate?  
  • Check out the easy instructions at http://gbbc.birdcount.org/get-started/
  • Count days are Friday thru Monday, Feb. 13, 14, 15, and 16
  • Take a minimum of 15 minutes and go outside wherever you are and count the birds you see, noting their species. (Even gulls in a parking lot count. Don't know what kind of gull it is? That is OK. If you know the basic family group–gull, sparrow, duck–GBBC has a box for basic IDs.)
Pair of spotted towhees and a single mourning dove
How do you count? Take a look at what you see at one time. For example in the photo above: two spotted towhees (Pipilo maculatus) and one mourning dove (Zenaida macroura). Counting in my yard. You don't accumulate the number, you go with the highest number of that species that you see at one time.

I'm going to a neighborhood park today: Serrania Park. My husband will take a few minutes at work to go outside and count. Maybe one of L.A.'s Hidden Gardens is near you. They are a great place to see birds.

Last year people counted more birds than ever. Let's break the record again. Get out there and Count Those Birds!

Friday, November 07, 2014

Bright Red-Orange Bird in Los Angeles

Wednesday, mid-day, I glanced out the window to see a brilliant orange and black bird in the backyard. I dashed for a camera because this was no typical bird. Hooded orioles typically nest in our neighborhood, and males are striking orange-yellow and black, but this bird was nearly “caution-orange.” It had a black cap, black vest and wings.

I had heard stories of a breeding colony of an African bird in the Sepulveda Basin, but I had never seen one myself. When I saw that coloration I knew an orange bishop had come to see me.

The orange bishop (Euplectes franciscanus), also known as the northern red bishop, is so extravagantly colored that at first glance it looks fake. My first thought was that one of my yard house finches had gotten brightly-colored trash stuck on it.

In a dark tropical forest this brightly colored bird might not stand out, but here in a very dry southern California, I feared he might be easily picked off by our local Cooper’s hawk. The female orange bishop is more moderately plumed. With a yellowish head and back, and a white tummy, she might blend in with goldfinches and sparrows.


The lone male orange bishop stayed just long enough for me to hastily snap a few photos. He must have just been passing through because I haven’t seen him again. Was he a descendent of the breeding colony nearly 10 miles away or is he an escaped caged bird? Admired for their fantastic coloring, the orange bishop is sometimes kept as a pet. However, this bird did not seem comfortable with a human approaching.

As a potentially invasive species, there is some concern about the orange bishop as there is with the nutmeg mannikin (Lonchura punctulata). As seed feeders they could become crop pests or negatively impact native bird species. Orange bishop numbers seem to be increasing in North America. Sibley reports that there are breeding populations not only in southern California, but also Phoenix, Arizona, and Texas. So if you see a bright red-orange sparrow-like bird in your yard, maybe the orange bishop has come to visit you as well.

Saturday, March 15, 2014

A Cow Skull Nest

The Bewick's wren is nest building. Do you see him about 6 inches to the right of the Nature's Nest raw cotton nesting material?

Look for his black eye and the white stripe of an eyebrow. About an inch to the right of his eye, the cotton fuzz in his beak is sticking out from behind a leaf.

The wren has already built a nest in the lariat house. Now he is building a second nest in the brain cavity of the cow skull that hangs on the patio wall.


He has been considering this location for several years. This year he decided to go for it.

The male Bewick's wren builds two nests and then tours his mate through the two sites. He's hoping one will meet with her approval. 

Will we have baby wrens in the cow skull? We'll see.


Allen's hummingbirds have already successfully nested once this Spring 2014.

Thursday, February 20, 2014

Great Backyard Bird Count 2014 Bigger Than Ever

Last weekend, people around the world counted birds in their backyards, local parks, neighborhoods and wildlife areas. India turned out a large number of people submitting this year. In total, 132,656 observation lists have been submitted as of today. The last day to submit lists from the Feb. 14-17 Great Backyard Bird Count is Feb. 28th.

It was fascinating to watch the world map on the GBBC website as lists were turned in and their location marked. As I watched, someone in Australia posted their list. There were observers in Iceland, several lists from New Zealand, multiple locations in Africa; people all over the world providing science with a snapshot of bird numbers and activity. Check out the GBBC map.

Malibu Lagoon State Park
I went out to Malibu Lagoon one morning and to Santa Barbara the next. It was a beautiful weekend for spending time outside. Several of us saw a peregrine falcon at Malibu Lagoon and the best sighting at the estuary wildlife refuge in Santa Barbara was two pairs of greater scaups.

My favorite birds this weekend, however, were in my own backyard. The Allen's hummingbird babies are feathering out. It won't be long before they start trying out their wings.

We found their nest in January.

And this weekend I spotted a second hummingbird nest. This female Allen's is sitting on two white eggs. The warm weather in California may bring us a series of nesting hummingbirds this year.

Allen's hummingbird on nest

Now that you've counted birds for the Great Backyard Bird Count, think about FeederWatch or eBird
  • FeederWatch: Count birds in your backyard two consecutive days every week or bi-weekly, Nov. - April.
  • eBird: Count birds where and whenever you see them and enter your lists in the largest citizen scientist database in the world.

Monday, January 27, 2014

Bird Nesting Time in California

Here in California where winter rains have eluded us and the days have been spring-time warm, it is hard to believe the rest of the country is shivering through ice storms and record low temperatures.

Allen's hummingbird nest 1/27/14
The birds are gauging that the warm weather means spring. The Bewick's wren is singing to attract a mate. The oak titmouse has found a mate and the pair have been checking out bird houses.

Amazingly, we already have an Allen's hummingbird sitting on two tiny eggs. I'm not sure when they were laid, but I do know that this little architect lined the inside of her nest with natural cotton fiber that I put out. The cotton fiber is the cream colored material on the inside of the nest.

January should be the depth of winter. We should have wet weather that puts a damper on nesting for another month or so. Unfortunately, that isn't the case. The birds are breeding and nesting, so it is time to put out quality materials to supplement what they can find naturally.

I make a knotted holder out of natural wool yarn that is too rough for making garments. Then I fill these holders with natural raw cotton fiber. 

Hummingbirds, bushtits and lesser goldfinches are just a few birds that prefer to use soft plant fibers to line their nests. Nature's Nest.
  
Anna's hummingbird with Nature's Nest.

Placement is important too. Nesting fiber needs to be located where birds can find it, sit beside it on adjacent branches to gather fiber, and the location should be far enough from feeders that small birds are not intimidated by larger birds eating.

I have to make sure that nesting material is on small branches to avoid tree squirrels stealing the nesting material for their own use.

The continuing drought means plant fibers are not as abundant as they should be. Man-made fibers are easy to find around human homes, but those fibers can be problematic, even dangerous, to bird hatchlings. Materials that cause nest failure.

Bird houses should be cleaned out too, so new occupants can move in. Mosaic bird house.

It's January, but this year in California, birds are already starting to nest.

Wednesday, October 23, 2013

Cooper's Hawk Comes for a Bath

We had a visitor this morning: an adult Cooper's hawk. Typically they come to hunt the mourning doves and band-tailed pigeons, but this morning the bird bath was the main attraction.

Even birds of prey need a drink or a bath now and then. Both the red-tailed hawks and the Cooper's hawks seem to prefer the still, raised bird bath over the bubbling fountain 20 feet away. The juncos and the hermit thrush prefer a shallow dish placed under a rose bush. Water is vital for creating habitat.


Placing water in an open space enables birds to see any lurking dangers and frequently allows them to feel comfortable enough to happily splash and play in the water.


Cooper's hawks are frequent visitors and have even nested next door. This, however, was a pleasant surprise, a special moment shared because wild creatures see our yard as a safe and natural place to visit. Create habitat in your yard and you'll expand your own experiences.

Wednesday, June 27, 2012

Evidence of a Cooper's Hawk

This morning the Cooper’s hawk was in the yard. I didn’t see it or hear it, but like any visitor it left behind evidence.

Apparently, this Cooper’s hawk is molting. A variety of feathers were loosely scattered about. Fluffy underdown here, a flight feather there. This wasn’t the explosion of feathers left behind when a Cooper’s hawk plucks a mourning dove it has caught, but instead random feathers in our yard, one on the sidewalk out front and another down the block.

Feathers wear, get damaged and breakdown. Most birds will loose and replace all of their feathers annually either in sections or all at once (called a catastrophic molt, when a bird looses too many feathers at one time to be able to fly). Just as many mammals shed their heavy winter fur, it is natural for birds to molt their feathers.

Many living things pass through a habitat. In this case the Cooper’s hawks come for water and food. Often you may not see these visitors directly, but if you look for evidence you may realize that the biodiversity in your yard is greater than you think.

Friday, May 11, 2012

An Anna's Hummingbird Nest

May 11th and finally I've spotted a hummingbird nest. Some years there have been multiple in the yard at one time. Nests in 2010


This nest is a special find. It is an Anna's hummingbird nest. Fiesty little Allen's hummingbirds took over this territory about 10 years ago. Hummy. FIK. This smaller species has been pushing the Anna's out of residential areas in Southern California.


But we have had a lone female Anna's that has stuck it out and now the tide of Allen's seems to be waning a bit.


What makes this nest doubly exciting is the two tiny eggs tucked inside and the fact that it is built almost completely out of the natural cotton fiber that I put out a month ago. The Anna's hummingbird laced the natural cotton into this perfect egg cup using that strong and pliable fiber, spider web. Hummingbird nests are always a marvel, but this one is stunning.


I've seen nests in the past that have failed because female hummingbirds used man-made polyester fibers they found–probably sticking out of patio furniture in someone's backyard. These man-made fibers don't compress, don't provide the sturdy construction that is needed for a successful nest. They also don't react with water and weather the way natural fibers do.


I've been watching the bushtits and the goldfinches taking beaks full of the cotton fiber, but I never saw the Anna's girl. Yet, obviously she was making multiple trips.


Offering birds water, food and habitat can attract them to your oasis of a yard. Provide plants that offer shelter and they will take up residence. Go one step further, offer natural building materials that are hard to find in our human crafted landscapes and you will be rewarded with watching life renew.

Wednesday, March 28, 2012

Watching for Warblers

yellow-rumped warbler
Warblers are small birds with narrow pointed beaks that feed primarily on insects. They flit through the trees and frequently sing "warbling" songs.


The yellow-rumped warbler is the most common warbler found in the Los Angeles area during the winter months. However this year, we had an orange-crowned warbler that was hanging out in January and in February I spotted a Townsend's warbler during Great Backyard Bird Count at the LA Zoo and a black-throated gray warbler at Serrania Park. Various warbler species will be migrating through our area in the next two months–yellow warblers, Wilson's warblers, Townsend's warblers and more. A few years ago we had a Wilson's warbler that rested at our house after flying through a wildfire area on its southward migration.


Sepulveda Basin Wildlife Refuge
Areas with native plants that attract insects are prime spots to see warblers: Malibu Lagoon State Park and Sepulveda Basin Wildlife Refuge are two of my favorites.


To see a wonderful video on identifying warblers, check out the Warbler Video from Cornell University's Dept. of Ornithology. While warbler diversity is far greater on the east coast, this video gives great general information on looking for warblers. And because we don't have as many species of warblers here in the west, you won't be overwhelmed with identifying them.

Monday, March 12, 2012

First Hummingbird Nest of 2012

Allen's hummingbird nest from a previous year
Spring must be here, I found the first hummingbird nest of the year! Unfortunately, it is between 50 - 60 ft. high up in a Grevillea robusta (an Australian species commonly called a “silk oak,” despite the fact that it is not an oak at all). That means pictures of eggs and babies will be impossible.

The female Allen’s hummingbird is still actively building the nest. She is stitching together a masterpiece of plant fibers and moss wrapped in stretchy spider web. Typically, it is during this construction phase that I find it easiest to locate a hummingbird nest. The activity of the female in one vicinity offers the best opportunity to locate the walnut-sized structure with its ingenious camouflaging.

The Bewick’s wrens have also been busy testing out nest locations. There has been some activity at the lariat house, but no definite decision to nest there yet.

Even the Cooper’s hawks were gathering sticks yesterday.

Since nesting is in full swing it is time to put out some quality nesting material. Natural fibers can be difficult for birds to find in the city. I try to make some readily available with hopes the birds will use the raw cotton, wool fiber or dog hair rather than man-made fibers that can cause catastrophe. I watched two female hummingbirds fail in their nesting attempts in 2010 because of polyester fiber in their nests.
Putting out natural fibers can be as easy as this, a handful of raw cotton fibers wired to a plate and attached to a tree. In this case the red attracts the hummingbirds. They quickly discover that there is no food, but there are wonderful building fibers that are naturally soft, water repellent, pliable, nontoxic and biodegradable. And this isn’t just for hummingbirds. I’ve seen bushtits and goldfinches pulling off fibers as well. You don’t have to go out and buy anything. Comb your dog or cat and stick the cast-off fur in a bush. You may not see the builders taking supplies, but I can tell you, the Bewick’s wrens always line their nest with the black hairs from our dog.

Nesting birds need quality resources. Make them available and the building will happen in your yard.

Wednesday, February 15, 2012

Great Backyard Bird Count 2012

Get your binoculars!

The Great Backyard Bird Count is Coming!


Friday, February 17 - Monday, February 20


This is an opportunity to go outside and reconnect with your avian neighbors. How many crows are flying by? Are those turkey vultures circling over the Freeway? Is that a Bewick's wren making a nest in the bird house? Not only will you have fun participating in the Great Backyard Bird Count you will be contributing to our scientific understanding of the status of bird populations and movement across the continent.


So grab your birding book, your binoculars and a piece of paper. GBBC is designed for kids to participate, anyone can do it. Note the time you start watching, distance traveled, number of people watching and GO!

Click the button to enter you data at Cornell University's http://www.birdcount.org


I'll be counting at:

Saturday, Feb. 18 8 AM - 10 AM Member's Birdwalk at the LA Zoo
Monday, Feb. 20, 9 AM - 11 AM Malibu Lagoon

Monday, January 09, 2012

Do Birds Mourn?

Do birds mourn? Do other species have complex family relationships that we don't recognize because we don't take time to observe? Yesterday at dusk, a band-tailed pigeon sat at the feeder trying to eat. It struggled to move the food from it's crop (a kind of holding pouch in the throat) down into its stomach. It's feathers were slightly fluffed up, a definite sign in warm weather that a bird is not feeling its best.


I had seen this bird the day before. Band-tailed pigeons are the largest birds that come to my feeder. They stand about 10 inches tall and are heavy bodied like the imported rock pigeons you might see in a parking lot. But the band-tailed pigeon is a native Californian and historically flocks of them thrived on acorns in our oak woodlands. Diminished numbers of old-growth oaks have meant fewer of these beautiful gray birds with iridescent green at the back of their neck and a whitish band across the tail. For the past seven years these birds have been regulars at my feeder. They first appeared in 2004, but by 2005 we were seeing them year-round.


On Saturday, I noticed that this band-tail came to the yard alone, (unusual because they typically are in family groups), and it seemed punch-drunk, unstable, like it had just survived a predator attack - most likely from a Cooper's hawk. A few of its feathers were askew. It sat quietly perched in a tree trying to compose itself. Later it was gone.


The Cooper's hawks have been hunting our neighborhood intensely for about a month and the band-tailed pigeons have actually become weekly visitors rather than daily. When they come they eat, drink and move on. They don't dally.


Last night when I watched the injured band-tail trying to swallow, my hope that it had survived the massive impact that a hawk attack can deliver began to dwindle. I've seen this before, a bird that escapes a predator attack may suffer internal injuries that are fatal. Cooper's hawk attacks band-tailed pigeon.


As night fell the injured band-tailed pigeon bedded down about five feet off the ground in a small lavatera shrub, unusual for a bird that typically roosts overnight in a large tree 40 feet or higher.


Sometime in the early morning the band-tailed pigeon died. I found its quiet body at the base of the bush. As I gently picked it up and grabbed a shovel to bury it on the hillside, I realized I was being watched. Four adult band-tailed pigeon perched in the large pine tree next door. Were they waiting for their injured family member to emerge from its evening roost? Had they spent the night here, watching over their injured companion?


I held the silent gray form up for them to see before I buried it in the earth. Eight eyes followed my movements. They remained silently perched. I refilled the feeders, but they did not come down to eat.  They do not appear to be here for food. Do they understand that this bird has died? Do they mourn the loss of a family member? I have seen one band-tail risk its life to alert another of a predator. What really goes on in their family relationships?


Too often we paint ourselves as emotionally superior to other species and point out that humans have complex communications and relationships. But I have seen crows solicit help from ravens to drive off an owl - Mobbing an Owl. I've seen an Allen's hummingbird mother become distraught over a destroyed nest - Rescuing Hummingbird. I've watched a female Allen's hummingbird fend off another female trying to steal her nest and documented the soap opera interrelationships of a group of nesting females - Allen's Hummingbirds.


I don't know if the band-tailed pigeons are mourning the loss of one of their own this morning, but they are here for a reason. And the more I watch the creatures around me the more I am amazed and humbled by them.

Friday, December 23, 2011

A Watershed Gives Birth To Rivers

Las Virgenes Canyon Open Space Preserve
We think of streams and rivers as flowing bodies of water, but we tend to give little thought to where the the water comes from. For the Los Angeles River the water collects in rolling mountains high above the valley floor. But because our climate fluctuates between drought and flood, the water coming into the Los Angeles River is historically intermittent.
valley oak
I recently had the opportunity to explore the mountains and valleys of the Las Virgenes Canyon Open Space Preserve at the western end of the San Fernando Valley. These rolling hills with ancient oaks have been ranch land and also the testing grounds for all of the major rocket engines that have taken Americans into space.


Up until a few years ago this area was closed to the public and the land was in dispute between developers, conservation groups and activists concerned about toxins (nuclear and chemical) that had been left on the land. Unfortunately, technology often comes with a price and in this case toxins in and on the land are being cleaned up, but some of the waste is best left undisturbed. The positive side to that uncomfortable notion is that development plans were shelved and the land was purchased by the state to become parkland and a wildlife corridor. 
white-crowned sparrow
The Las Virgenes Canyon Open Space Preserve offers beautiful vistas and an opportunity to stroll a more wild side of California. In December, small flocks of migratory meadowlarks forage in the tall grass while a harrier hawk flies ominously just over their heads. A coyote watched us from the rim of a hillside. While acorn woodpeckers were so busy stashing acorns in every nook of a twisted valley oak, that they didn't even notice they were being observed. 


When the rains come and drops gather on this open area, tiny streamlets will flow in three different directions. Some will flow slightly north and down into the Simi Valley wash, some will head directly west toward Malibu Creek and the ocean, and some will flow down Bell Creek in Bell Canyon to become part of the Los Angeles River.


To reach the Las Virgenes Canyon Open Space Preserve drive west on Victory Blvd. until it dead ends. There is a nice gravel parking lot and a $3 fee helps to maintain this slice of open land. Walk the watershed are get a feeling for how important open land is for gather wildlife and water.

Wednesday, November 16, 2011

Is That A Bat or A Bird Flying Over the LA River?

A lot of people are interested in the bats that we have in the Los Angeles area. Bats in LA. That's a good thing, because bats need friends. Bats provide a great service by eating tons of insects. But not everything you see with pointy wings flying at dawn or dusk is a bat.

I recently had a comment from a reader asking about groups of 20-30 bats flying over the Los Angeles River in the Burbank area early in the morning. An observant eye can frequently see nature attracted to the Los Angeles River as you make your slow commute on the Ventura Freeway. I've seen these wheeling silhouettes as well, but probably what this traveler saw were birds and not bats. 

Bats typically return to their roosts before dawn. Seldom do you see our local bat species in a group unless it is right as they are emerging from their roosting location in the evening. 

At specific times of the year when there are insect blooms along the river, you can see swallows or swifts in groups flying quickly over the river catching insects. These small birds can look similar to bats. Both have narrow wings that help them maneuver quickly so they can catch insects on the wing. Both are dark in silhouette and some swallows and swifts have minimal tails that may make them appear batlike. 

But if you look closely you will see a difference. Bats typically have a faster wing beat and seldom glide. Swallows and swifts on the other hand will glide in between wing beats. These birds frequently are seen in flocks ranging from 10 to 1,000s of individuals. One evening along the banks of Utah Lake just south of Provo, we watched hundreds of thousands of swallows feeding on swarming insects just before a storm. I've never seen so many birds in one place in my life. 

These two animals bats and swallows (or swifts) are filling a similar niche in the ecosystem; they are flying predators feeding on small flying insects. And they share the workload, bats at night and the birds during the day. Occasionally, when the insects are plentiful and the weather is just right the two shifts will cross and you may see the furry and the feathered creatures sharing the sky. Both are doing their best to reduce the numbers of mosquitoes along our river and around our neighborhoods. All they ask in return is habitat to roost and nest in and insects that haven't been poisoned. Birds and bats need you to be their friends.


Swallows and swifts you are most likely to see in the Los Angeles area:
white-throated swift, chimney swift,Vaux's swift, barn swallow, cliff swallow, northern rough-winged swallow, violet-green swallow and tree swallow


For more about these bird species check out Cornell University's About Birds website: http://www.allaboutbirds.org/guide/search

Saturday, November 12, 2011

11/11/11 Calabasas Creek Park

Did you take a few minutes on 11/11/11 to go adventuring?

I’ve become fascinated by the Los Angeles River. I want to explore it from its trickle out of the mountains to its tumble into the sea. I think there is much to be discovered especially in relation to birdlife.

Yesterday morning we headed out to Calabasas Creek Park in old town Calabasas. It is a small bit of land tucked next to the Ventura Fwy just east of the Sagebrush Cantina. A hundred years or so ago, Calabasas Creek ran past Leonis Adobe and headed east to join with Bell Creek and Chatsworth Creek to form the headwaters of the Los Angeles River.

Forty years ago, Calabasas was a dusty half-block of old clapboard buildings and the creek was seasonal and forced into a cement drainage system. Today there seems to be a steady flow of water down the canyon. As long as that flow is a well-mannered creek, it is allowed to flow under the road and through Calabasas Creek Park.


A cement dam creates a gentle pond under wide-spreading ancient oaks and on this day the pond was dappled with mallards. The male mallards are just starting to take on their breeding plumage and they were looking quite smart.  As we overlooked the pond we noticed two fascinating things.

  • Whenever the fox tree squirrels in the coast live oaks dropped an acorn into the pond, some of the mallards, mostly males, dashed to snatch it up. They were grabbing the inch-and-a-half long acorns and swallowing them down. It was amazing. I’d never heard of ducks eating acorns. And they weren’t all doing it. Some swam to the dropped fruit only to be disappointed and confused as to why others were eating these big hard things.
  •  
  • The second thing we noticed was the pattern of the ducks in the water. The spacing was amazingly regular. As we watched it became apparent that the male mallards were maintaining a minimum of 1.5 feet between themselves. A male that compromised that “personal space” was either chased away or was purposefully forcing other males to move. Females were allowed to swim in between the males without comment. This wasn’t just ducks floating on a pond, this was a very organized social gathering.

While the mallards commanded the pond and the creek flowing out of the park, overhead bushtits, oak titmice, yellow-rumped warblers and an unusual sight, a summer tanager moved through the trees. A downy woodpecker feasted on insects in an oak gall. While in the well-manicured front garden a western tanager and house finches bathed in the fountain. In all there were 11 species of birds, a western fence lizard, a huge orb spider, one gardener and us in the park.

Calabasas Creek Park offers easy access, manageable size and a quiet escape. Discover one of the watery fingers that reaches down to become the Los Angeles River.

Calabasas Creek Park is open 1 PM - 4 PM Wed. - Friday & Sunday, and 10 AM - 4 PM Saturday. For more information visit www.leonisadobemuseum.org

Monday, November 07, 2011

The Big Year - Movie Review

A Big Yes for "The Big Year" with Jack Black, Steve Martin and Owen Wilson. Finally a movie that offers intelligent humor with realistic characters and conflict. Three men with the goal to see the most bird species in North America during a calendar year. While it may seem crazy to some, it was a real contest of perseverance, character and skill. Yes, the facts have been aided to enhance the dramatic structure and this drama isn't giant transforming robots or explosive terrorist plots, its what most of us really can relate to: transforming moments in our lives and the plot twists in our personal relationships.


Personally I'm tired of outlandish comedies aimed at teens that are based on ridiculous hyperbole. It is a pleasure to travel along with these characters on an adventure that you can take with any member of your family and not be worried about the language or situations on the screen. Hopefully this film will stay on screens long enough for family holiday movie going.


I was out birding with some people this morning and everyone was eager to see this movie, but they couldn't find places where it was playing. This is a quiet movie that has the potential to build an audience, but only if the marketing people understand that not every film brings in its biggest box office in the first weeks.


There is more to "The Big Year" than birding. Everyone has a dream that is important to them that might be seem absurd to someone else. Maybe I'm biased because I am a birder and the notion of doing a Big Year seems like a holy grail, but even if you look beyond the birding quest, the characters in this movie are seeking personal fulfillment. They are trying to find something within themselves. Maybe we would all be better off if we stopped reaching for the bright and shiny things that got our economy into the mess it is in and started looking at our own internal goals. There is no big villain and no crazy slapstick in this film, instead there is wit, creative imagery, beautiful locations and wonderful characters played by a cast of experience actors that know what it is really like to be flawed humans all trying to find the best of themselves.


Plus it motivated me to go birding this morning. 54 species at Malibu Lagoon State Park!

Tuesday, October 25, 2011

A Birding Jewel in Los Angeles

The wonderful thing about birding is that you can do it anywhere. I saw my first green woodpecker on the lawn of a hotel just under the wingtips of planes landing at London Heathrow Airport and a Eurasian jay in the ruins of Troy, in Turkey.


But I identified my first white-crowned sparrow in my backyard in the suburbs of Los Angeles. You can travel all over the world looking for exotic bird species, but sometimes the places close to home can offer even greater diversity.


great blue heron
One of my favorite birding locations is in the middle of the suburban bustle of the San Fernando Valley. The Sepulveda Wildlife Refuge is a flood basin along the Los Angeles River. Formerly a sod farm, the low-lying area has been set aside by the Army Corps of Engineers to collect water in the years when we have unusual amounts of rain and the basin floods. 

The sod farm is gone and now native scrub surrounds a pond and riparian habitat. The refuge has become an amazing location to see a wide variety of southern California's bird life and a major stopover for migrating birds. Recently on a Saturday morning in early October, I spotted 37 bird species during a short 2-hour walk.  There were the locals: California and spotted towhees, lesser goldfinch, Anna's hummingbird and black phoebe. The pond provides feeding areas for five species of herons and egrets, and now a belted kingfisher pair. There was even a lone white-faced ibis hanging out with some mallards.


The travelers have begun to pass through and the wildlife area provides important refuge, food and water for migrating species. A beautiful adult male yellow warbler came within a few feet; close enough that I could see the red streaking on his breast without my binoculars. The first of the white-crowned sparrows were in the underbrush, while double-crested cormorants were sizing up the island for nesting and three species of grebe were patrolling the water.


Birds of prey are numerous here as well. I can't think of too many locations where in two hours time you can see an osprey, red-tailed hawk, red-shouldered hawk and an American kestrel.


Sepulveda Basin never disappoints me. Whether it is the osprey diving for fish or a family of 22 bushtits making their way through the underbrush, there is always something to thrill and amaze. Take a Mini Birdwalk with video. This birding jewel in the middle of Los Angeles offers numerous bird species anytime of the year and provides easy access to some of California's unique species. Sepulveda Wildlife Refuge in Feb.

Oct. 8,  2011 Species List
mallard
domestic mallard
pied-billed grebe
eared grebe
western grebe
double-crested cormorant
great blue heron
great egret
snowy egret
green heron
black-crowned night heron
white-faced ibis
turkey vulture
osprey
red-shouldered hawk
red-tailed hawk
American kestrel
American coot
mourning dove
yellow-chevroned parakeet
Anna's hummingbird
belted kingfisher
Nuttall's woodpecker
black phoebe
Say's phoebe
bushtit
Bewick's wren
northern mockingbird
European starling
common yellowthroat
yellow warbler
yellow-rumped warbler
spotted towhee
California towhee
song sparrow
white-crowned sparrow
house finch
lesser goldfinch 

Other So. Cal birding areas: Bolsa Chica, Malibu Lagoon, Serrania Park