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Mystery photographs

01 August 1990 Comments Main paper Perched conspicuously on a prominent vantage point, this mystery bird shows a fairly substantial bill, relatively long tail and black mask, a combination which quickly shows it to be one of the shrikes Lanius. The blackness of the wings and '... Read More

Seasonal reports: winter 1989/90

01 August 1990 Comments Main paper The weather during this winter period was milder and wetter than average everywhere, with temperatures 2.5ºC above normal in much of southern and eastern England Unsettled westerly weather in early November changed to warm anticyclonic southeasterlies... Read More

Post-fledging behaviour of Choughs on Bardsey Island

01 June 1962 Comments Main paper T H E C H O U G H S {Pyrrhocorax pyrrhocorax) of Bardsey Island, off the coast of Caernarvonshire, have been a constant source of interest since the bird observatory opened there in 1953. O n e or two pairs have nested in most years and forty-seven young ... Read More

Albinism and melanism in birds

01 June 1962 Comments Main paper T H E STUDY OF heterochtosis or colour variations in the plumage of birds is a subject that the majority of field ornithologists either ignore entirely or regard with only mild curiosity. In the early years of the present century and before that, however,... Read More