Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Golden-crowned Sparrow
R.E. Johnson
1968
Nov. 29 Tilden Regional Park, Contra Costa Co., Calif.
Overcast, cool. 2:30 - 4:00 PM. Flock of 80 birds including a few (3 or 4) W.C. Sparrows and one or 2 Song Sparrows.
All fed in weed & grass field & all flew off to weed tops when disturbed, but the White-crowned Sparrow tended to perch higher on the weeds than the rest.
The Song Sparrow was more nervous & disappeared from the perch sooner. Thus the Golden-crown resembles the WC sp. is sitting still, but differs by perching lower.
Weed species in field include mustard, dill, & thistle.
Nov. 30 Berkeley Aquatic Park, Alameda Co., Calif.
Overcast, sprinkling. Feeds within a couple feet of shrubbery along with W.C. Sparrows & Brown Towhee but when later species drift out from shrubs (to 20 ft out), this bird stays within 2 or 3 feet of bushes & is left behind. It appears well adapted to "civilization" wherever dense shrubbery remains. Waterskiere, a freeway, & picnickers are all in close proximity.