Field notes, v504
Page 398
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Bill Arvey Journal Marin Co.,Bellevista. (3) Nov.6,1966 to be blowing straight at me,ie. north; can't see S.F. anymore; whitecaps on the Bay and conditions may get too bad. 8:30: another count: In--9; out--9. A general observation I would make about cormorant movements now is that in the morning the cormorants tend to leave the roost to feed at probably the same time and for this reason form huge flocks. I've seen this on the way out to the Farallones and todayand in other places. But later in the day as they're coming in or going back out to feed for a second time, the flocks aren't so uniform, not so big, not so often. Probably this is why we get patchy observation times where I see very many goin[illegible] at one time o[illegible] out; so I see large flocks because it's early in the morning and they're on their way to their first feeding period. I noticed last time and now also that many of the cormorants are missing secondaries and are possibly molting at this time. Have to verify this on the skin collection. 8:57: about 100 yds. on the Bay side of the big rock here are a flock down in the water, appear to be upwards of 20 in a loose flock of Western Grebes. 8:58: an observation: In--5; Out--3. Noticed a 2nd year Glaucous-winged Gull here. In Sausalito parked in a small outlook looking at