You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Behaviour of the Pomarine Skua Stercorarius pomarinus Temm. with Comparative Remarks on Stercorariinae
Ornis Scandinavica (Scandinavian Journal of Ornithology)
Vol. 4, No. 1 (1973), pp. 1-16
Stable URL: http://www.jstor.org/stable/3676285
Page Count: 16
You can always find the topics here!Topics: Aerial locomotion, Breeding, Aviculture, Female animals, Species, Owls, Hovering, Bird nesting, Birds of prey, Tearing
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Behaviour of Pomarine Skuas was studied in Alaska. Food mainly consisted of Brown Lemmings, hunted by birds perching on mounds, or flying 3-10 m high, with 1-3 second hovering bouts. Skuas caught and handled prey with the bill only, and pursued lemmings in burrows by tearing the roof. Calls included a long call sequence and two alarm calls. The long call was associated with Wing-raising and Oblique displays, in flying birds with Slow Wing-beat display and V-gliding. Displays were used in territorial defence towards skuas and gulls, alarm calls towards other predators. Comparison with other skuas shows that displays and calls are similar to those of the Great Skua S. skua. This and other evidence indicate closer affinities between these species than was previously supposed.
Ornis Scandinavica (Scandinavian Journal of Ornithology) © 1973 Nordic Society Oikos