Behavioral Ecology and Sociobiology, Vol. 24, No. 5 (1989), pp. 297-304 (8 pages) Kleptoparasitic attacks by adult and first winter (immature) black-headed gulls in flocks of lapwings (Vanellus ...
The Auk, Vol. 119, No. 2 (Apr., 2002), pp. 473-486 (14 pages) We studied prey selection of Sandwich Terns (Sterna sandvicensis) in the presence of kleptoparasitising Black-headed Gulls (Larus ...
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IN northern Bohemia there is a large pond or artificial lake—the Hirschberger Grossteich—with a small, rocky island. This is a favourite breeding-place of gulls. Most of these are Larus ridibundus.
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