ANZA-BORREGO DESERT CHRISTMAS BIRD COUNT RESULTS DECEMBER 18, 2016

Eighty-nine birders showed up under calm (cold in the morning) and dry weather for the 34th edition of San Diego County’s Audubon Anza-Borrego Desert Christmas Bird Count (CBC), sponsored by California State Parks, Anza-Borrego Foundation and UC Irvine.

One hundred eleven species were recorded, and this equals last year’s total as well – even the total number of birds tallied (about 9,500) closely mirrors 2015.

White-crowned Sparrows were far and above the most numerous bird species, followed by White-winged Doves, Yellow-rumped Warblers and House Finches.

The local House Finch population experienced a nose dive in 2014, from which it has yet to recover to traditional numbers, but the Eurasian Collared-Dove, first tallied in the 2002 CBC, has for the first time surpassed the native Mourning Dove.

The San Diego County Inca Dove population in Borrego is hanging on – one was found on count day, but we do know that at least 4 birds are still present in a single group.

Year after year the Costa’s Hummingbird tally from Borrego Valley is the highest of all the Christmas counts, and may well stay there even though this its numbers dropped a bit from last year. Additionally, Mountain Bluebirds made an appearance after a no show last year.

Rare birds (for us) encountered included Wood Duck, Red Head, Eurasian Wigeon, Blue-winged Teal, Hooded Merganser, Red-shouldered Hawk, Golden Eagle, Burrowing Owl, Red-breasted and Red-naped Sapsuckers, a Yellow-shafted Northern Flicker, Vermilion Flycatcher, Plumbeous Vireo, Summer Tanager, and Rufous-crowned sparrow.

Thanks to all the participants!

Bob Theriault

Download this year’s results: CBC 2016 Results Final (pdf file)

See CBC results for previous years:
http://anzaborrego.ucnrs.org/citizen-science/

Pictured below are a Redhead, Western Bluebird, and a White-crowned Sparrow (Photos: Bob Theriault).

bluebirdRedheadsparrow

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