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01 January 2000 Comments News and comment ...

Reviews

01 June 1971 Comments Reviews Les Oiseaux du Proche et du Moyen Orient. By F. Hue and R.-D. Etchecopar. N. Boubee et Cie, Paris, 1970. 952 pages; 32 colour and 2 black-and-white plates and 356 line-drawings by Paul Barruel; 429 distribution maps; 2 end-maps. Fr 220.00. The two disting...

Notes

01 June 1971 Comments Notes Black Terns feeding over dry land Recent notes (Brit. Birds, 62: 282; 63: 34; 64: 32-33) have suggested that Black Terns Chlidonias niger feed over non-aquatic habitats more commonly than the published records indicate. This is certainly borne out by obse...

Flight identification of European raptors

01 June 1971 Comments Main paper Identification of birds of prey in flight will always be a problem. The best of us will never be able to feel completely confident about a group of species that shows such diversity of plumage, whose silhouettes vary in different circumstances and for whi...

Editorial: Field identification and birds of prey

01 June 1971 Comments Editorials British Birds has always prided itself on the encouragement it has given to bird identification. As far back as 1907, the first volume included an article by the Hon. Walter Rothschild on the separation of Willow Tits Paus montanus and Marsh Tits P. palus...

Stonechats in Jersey

01 June 1971 Comments Main paper ...

Notes

01 March 1962 Comments Notes Peregrine incubating Kestrel's eggs.--On 13 th May 1961, I was prospecting some crags in the Great Glen, Inverness-shire, in the hope of rinding a pair of nesting Peregrines (Falco peregrinus). As I approached the most likely-looking face from below, a fe...

Studies of less familiar birds 117. Scarlet Grosbeak

01 March 1962 Comments Main paper Asiatic bird whose range extends into eastern Europe. It is a rare visitor to Britain, apart from Shetland (notably Fair Isle) where it is of annual occurrence in the autumn. It is a species which is in the process of expanding quite vigorously north and ...

How do Black-headed Gulls distinguish between eggs and egg-shells

01 March 1962 Comments Main paper {Lams ridibundus) remove the empty eggshell shortly after the hatching of the chick. An investigation into the survival value of this response and of the stimuli eliciting it (Tinbergen et al. 1962a) yielded the following results. An empty egg-shell at a ...

Foot-paddling in Gulls

01 March 1962 Comments Main paper I S H O U L D L I K E to supplement the interesting comments recently made by Sparks (1961) on the functions of foot-paddling in gulls, since more is known about it than is apparent from his article. In my book The Herring Gull's World (1953), where I ref...

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News and comment

Reviews

Notes

Flight identification of European raptors

Editorial: Field identification and birds of prey

Stonechats in Jersey

Notes

Studies of less familiar birds 117. Scarlet Grosbeak

How do Black-headed Gulls distinguish between eggs and egg-shells

Foot-paddling in Gulls

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