California condor survey field notes, v1477
Page 249
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
California Condor Eben McMullan 26 February 1964 of Hopper mountain, sometimes creating a great roaring noise when diving after one another nearby and coming out of towering dives at great speeds. These are all immature Red Tailed Hawks that seem to enjoy flying about at great speed, in which these birds are very maneuverable and adept at turning and banking. One pair of raven came in and went from one bait to another, lighting on the ground near either the rabbit carcasses that were well scattered or the deer carcass. At times these birds would jump into the air four or five feet as if something had frightened them, after which they would either settle back and walk around the carcass or else fly away for a time before returning. This pair came first at 9:59 A.M. Another pair of raven joined the first ones at 10:10 A.M. As the new birds came in this seemed to add to the Courage, or lessen the Suspicion of all the raven that now commenced feeding on one of the Jackrabbits and the deer at separate intervals. These raven seemed concerned also with Nocturnal display and spent much time chasing one another in the air. Two adult Condor show up, out of nowhere, at 10:16 A.M. and after circling above ravens that were now feeding on one of the Jackrabbits seemed indisposed to come down and feed even though they would come down close above the bait at times. Five raven were feeding on deer carcass at 10:22 A.M. and an adult Golden Eagle came in and stacked up, hovering on the wind above where the raven were feeding. 9 Raven feeding at on deer carcass at 10:24--