Alaska Species Accounts, Part. 2, v4425
Page 11
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
P. De Bensdolte 1965 Stercorarius pomarinus June 8 Barrow, Alaska - almost all the birds seen today were well within the area by the old AFB radar installation remains. Most of the rest of the area is snow covered and scattered jaegers were seen sitting in the snow or behind the few tufts of soil present; a few flying low over the tundra, not more than 10 birds away from the AFB area. In the AFB are counted 23 birds in sight at once but I believe at least 10-15 more were present as there were at least 6 and probably 8 pairs of territorial birds in the area. Aerial fights were not common feet were seen regularly, and the wing up display was given by many birds on the ground as other flew over. Saw very little V-flying. Only one food chase and several of the birds were sitting on the ground. As we approached one Snowy Owl nest, the 3 flushed at about 30 feet distance. Immediately 3-5 jaegers descended on the nest and began to peck at the eggs, obviously eating the egg contents. At one time there were 3 jaegers at the nest, a 4th hovering over and a Glaucous Gull (which never got anything) nearby with at least 700-900 birds eventually got some egg material. 3 whole eggs were carried off (after they had been broken) and an additional large piece of shell was carried out of the nest, leaving 500 eggs behind. Dr. Pitselka and I stood 12-15 feet from the nest at one time and 3 jaegers landed nervously + repeatedly by the nest but would not get into it. After we left they returned only slowly to the nest area and did not appear to get any additional eggs; AFB = VOTH