Turkey Vulture perched on a branch against blue sky in Pleasanton, California

2019 Christmas Bird Count #3: Eastern Alameda County (12/20/19)

A sparkling, sunny morning greeted us in Pleasanton for our friend Adam’s section of the 2019 Eastern Alameda County Christmas Bird Count. Our team set out along the creekside Arroyo del Valle Trail to tally which and how many birds were around.
 
Right off the bat, a Red-shouldered Hawk cruised low over the creek and eventually perched nearby to soak up some morning rays.

Red-shouldered Hawk perched on branch in riparian area in Pleasanton, California
Red-shouldered Hawk

A flock of House Finches chattered away in the treetops.

House Finch perched on branch against blue sky in Pleasanton, California
House Finch

This Oak Titmouse carried some sort of tiny berry – tiny bill equals tiny food!

Oak Titmouse perched on branch low near a creek in Pleasanton, California
Oak Titmouse

We admired this American Robin’s orange breast feathers softly edged in white. This angle also gave us a nice look at its spotted undertail coverts.

American Robin orange breast and yellow bill perched on branch against blue sky in Pleasanton, California
American Robin

A noisy male Nuttall’s Woodpecker circled a slender trunk, showing off all sides.

Striped back and profile collage of Nuttall's Woodpecker on skinny tree trunk in Pleasanton, California
Nuttall’s Woodpecker

As we peered at some sunning Turkey Vultures, this Great Blue Heron flew in, perched, and kept an eye on the creek below.

Great Blue Heron perched on top of skinny snag against blue sky in Pleasanton, California
Great Blue Heron
Three people birding with binoculars next to a creek in Pleasanton, California
The team listening intently and looking for movement

Along the riparian corridor, we stopped to listen to a small mixed flock who gave us quite the auditory show. A Bewick’s Wren dominated with two quick songs, followed by heavy scolding. We also picked out an Anna’s Hummingbird, a Dark-eyed Junco, a California Towhee, a White-breasted Nuthatch, a Golden-crowned Sparrow, and a Black Phoebe.

Fox Squirrels were abundant along the trail – every direction we looked offered a view of another scurrying Sciuridae!

Fox Squirrel photo collage walking sitting on branches in Pleasanton, California
Fox Squirrels

Last year, a small group of Hooded Mergansers delighted us at the very end of the count. This year, early along the trail, we encountered two males and a female making their way up the creek.

Male Hooded Merganser in water in Pleasanton, California
Hooded Merganser
People looking for birds on a trail with binoculars in Pleasanton, California
LaReina, Miles, and Adam birding hard

As we walked along, we heard a familiar screech emanating from the tangle of trees above the creek.

We followed our ears and discovered a wet Red-tailed Hawk vocalizing often while drying its wings.

Red-tailed Hawk perched on a branch against blue sky in Pleasanton, California
Red-tailed Hawk

Now, we present a series called: Birds Blurred by Branches.

Mourning Dove perched on skinny branch above a creek in Pleasanton, California
Mourning Dove
Hermit Thrush hidden in willow branches in Pleasanton, California
Hermit Thrush
Soaring Red-shouldered Hawk seen against blue sky through tree branches in Pleasanton, California
Red-shouldered Hawk

Yellow-rumped Warblers were numerous on our count, like this striking Audubon’s type.

Audubon's Yellow-rumped Warbler perched on top of metal gate in Pleasanton, California
Yellow-rumped Warbler
Three people walking down a grassy hill in Pleasanton, California
Getting a closer look at the creek

Anna’s Hummingbird’s begin their breeding season as early as December, and the males were already working hard to impress prospective mates and secure a breeding territory. We tallied 34 Anna’s on our four-mile route, a surprisingly high number. After several display flights, this male Anna’s perched on an exposed branch to broadcast its buzzing, scraping song.

White-breasted Nuthatches were to be expected along the trail and didn’t disappoint.

White-breasted Nuthatch upside down on tree branch in Pleasanton, California
White-breasted Nuthatch

However, we weren’t expecting to see Red-breasted Nuthatches! We watched while two foraged both in and below a small stand of true cedars right next to the trail.

Red-breasted Nuthatch on the ground in cedar leaf litter in Pleasanton, California
Red-breasted Nuthatch
Red-breasted Nuthatch perched on wire fence in Pleasanton, California
Red-breasted Nuthatch at eye-level – always a treat!

We came upon Purple Finches foraging in the exact same peppercorn trees as last year – but, there was a totally unexpected sight accompanying them!

Purple Finch female and Western Tanager sitting on same branch in a peppercorn tree in Pleasanton, California
Purple Finch female and …

It was an off-season Western Tanager! We observed the tanager as it moved around a small area, even calling occasionally.

Western Tanager yellow and black bird perched on top of peppercorn tree in Pleasanton, California
Western Tanager
Western Tanager yellow and black bird perched in peppercorn tree in Pleasanton, California
A little wet from a recent bath, perhaps?

Take a listen to a couple Purple Finches making their soft, popping call. At 0:04 seconds, you can hear the much sharper call of a Yellow-rumped Warbler.

Towards the end of the trail, we tallied the day’s only Hairy Woodpecker foraging in a pine tree.

Hairy Woodpecker front and face and bill while perched on branch in Pleasanton, California
Hairy Woodpecker
Two men looking at birds with binoculars on a trail in Pleasanton, California
Relishing the last looks of the day

At this shallow and slow-moving section of the creek, we witnessed a mixed-flock bathing session with American Robins, Cedar Waxwings, Yellow-rumped Warblers, Song Sparrows, and even a Townsend’s Warbler – a wonderful parting gift!
 
This American Robin sat still, soaking for a couple minutes.

American Robin sitting in the creek bathing in Pleasanton, California
American Robin
Fox Squirrel looking down from eucalyptus tree branch in Pleasanton, California
Y’all come back now!

The Pleasanton count day is always one of our favorite days of the year. Spending the day birding with our dear friends while contributing to this long-standing citizen science tradition leaves us smiling every time!

Team Arroyo del Valle Trail: Adam, LaReina, Miles & Teresa

2 thoughts on “2019 Christmas Bird Count #3: Eastern Alameda County (12/20/19)

  1. Lucky guys with all the varieties of birds. Up north, only the few winter residents are coming to the feeders. Our Christmas Bird Count (Brome-Missisquoi, QC, CA) was postponed to January 4th, due to bad weather. I will get back to you on it. Cheers !

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