Mystery Photographs

01 June 1984
Comments Main paper Last month's mystery bird (plate 67. repeated here) is obviously an immature gull, and all the 'black-headed', 'black-backed' or 'white-winged' gulls can be quickly eliminated. It is obviously either a Herring Gull Larus argentatus, a Common Gull ...
Read More

Cannibalism in Herring Gulls

01 December 1971
Comments Main paper The Herring Gull Larus argentatus is a notorious killer during the breeding season. Young chicks are repeatedly struck on the head or often gripped by the neck and worried until dead (plate 85a). Usually, these chicks have trespassed into neighbouring ter...
Read More

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now