Field notes, v504
Page 378
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Below Vista Pt., Marin Co., Calif. Bill Arney Journal (2) see 3 cormorants; 2 of them appear to be Brandts but I'm not positive. They have a yellowish cast on the gular pouch which is probably a nonbreeding Brandts; doesn't appear to be bare like the Double Crest. And the one Pelagic on the rock can definitely be determined because of the more slender bill. A Brandts Cormorant also has put down about 50 yds. from the rock out in the channel. I think I'll start to count cormorants as I see them. 1:45: I've been here about 10 min. So in order to get a measure of activity I'm going to leave my (5 minutes) binoculars in one position for a no. of min. which I'll record and speak into the microphone as to how many cormorants are flying in which direction in the Bay. That way I hope to get a count, a rough measure of activity at this time. 1:50: during a 5 min. observation period saw 14 cormorants moving out of the Bay, all on the north side of the channel, in fact, fairly close to this side. Watched the carrier, Enterprise, move into the Bay. 2:10: another 5 min. observation: Out--5; In--2. There are now about 5 more cormorants on the main rock here, the very sheer part; they're Pelagic Cormorants, look very dull as if they're first year birds, but I can't tell. After rechecking