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Article
John C. Coulson, AuteurBelief that most seabirds return to breed where they had been reared as chicks and exhibit high levels of philopatry and, by implication, have low levels of gene flow, is untenable. In the past, estimates of philopatry have been exaggerated beca[...]
Article
John C. Coulson, AuteurThis paper examines the reasons behind the large population explosion of the Herring Gull (Larus argentatus) in Great Britain, which started about 1900, continued for 60-70 years and was then followed by a decline in numbers. The increase has of[...]
Article
John C. Coulson, AuteurCapsule The population dynamics of an Eider population has been studied from 1958 to 2006 to evaluate the causes of changes in abundance and breeding potential. Aims To evaluate the changes in clutch size, survival rate of adult ducks, the exten[...]
Article
John C. Coulson, Auteur ; Becky A. Coulson, AuteurCapsule Earthworms can be an important food of birds breeding inland and on the coast. Aims To identify food and feeding sites of Lesser Black-backed Gulls Larus fuscus breeding on buildings in Dumfries, Scotland. Methods Direct observations wer[...]
Article
John C. Coulson, Auteur ; Becky A. Coulson, AuteurCapsule Earthworms can be an important food of birds breeding inland and on the coast. Aims To identify food and feeding sites of Lesser Black-backed Gulls Larus fuscus breeding on buildings in Dumfries, Scotland. Methods Direct observations wer[...]
