Field notes, v504
Page 263
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Rice Arvey Journal. July 31 Pt. Lobos. 9:30 AM. Arrived at Colony. Overcast w/ low clouds - Fog. Temperature 60-65°. Observing Bird Island from about 150yd. 945. Sun beginning to break through. We have 3 general nesting groups of Brandt's Cormorants under observation. There is a colony at the far Southern part of the wave cut terrace which will be number 1. It appears to have many more nests hidden from view but I can observe about 30 nests. The center (number * 2) Colony has 100 + nests which appear to be under different stages of construction, rebuilding and incubation. Colony is N. side of rock, on sloping rocky part beneath the terrace; (number 3) appears to be as extensive with perhaps 100 nests. Cormorant activity is rather slow right now, may pick up as the sun appears. Some cormorants can be seen in various courtship displays, even though the birds in question are associated w/ nests. Many appear w/ bright blue/gular pouches. About the nests are seen Leaman's gulls, adults and juveniles, and when we first came we saw a large number of this species roosting w/ pelicans near the parking lot. Some may be seen walking among the cormorant nests without causing great disturbances. Brown Pelicans are very abundant in many plumage stages; these do not walk among cormorant nests and there is a sharp dividing line between nesting pelicans and cormorant nests. Also common here are western gulls, though not numerous at present. At least one