Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
1948
Agelaius phoeniceus
U.S.F.&S.
Nov. 21. Ranger Station, Upper Lake, Lake C., Calif.
Several flocks, this sp. + Euphagus cyan-
ocephalus mixed, flew N to NW overhead
at about sunrise, perhaps coming from:
roosts near upper end of Clear Lake &
going out to fields to feed.
Dec. 20. 5 mi. N. Dos Balos, Merced Co., Calif.
[See journal for note on aerial maneuvers
of flock]
Dec. 29. near Harris Station, 13 mi. S. Santa Maria, Santa
Barbara Co., Calif. a single massed flock
estimated to contain at least 5000 of this
species and a few hundred E. cyanoccephalus
was feeding on, or flying from, short-stubble
field along hi-way #1. Females outnumbered
males at least 2-1 in the flock, but many
immature J's , several fully adult ones
were seen.
1949
Mar. 20 - Gray Lodge Refuge, S.W. Butte Co., Calif. - The vast
majority of hordes of blackbirds roosting in
cattails & tules here are this species. I estimated
at least 3000 seen, but perhaps there were 10x
as many. No tricolor were seen; but see xanthocephalus.
In the morning nearly all the flocks had left the
marsh by 7:00 A.M. Feeding is apparently
done outside of the refuge - on adjacent
pasture & grain fields.