Letters

01 December 2001
Comments Letters When watching House Martins Delichon urbica in 1967, I wrote in my notebook: `Is the mud for the structure of their nests carried on, rather than in, their beaks?'. My impression then was that the birds carried up the mud on the beak, and pressed it in...
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Letters

01 July 1977
Comments Letters Half a pair of Black-browed Albatrosses In the course of their discussion of proof of breeding (Brit. Birds 69: 277, 457), Bruce Campbell and E. J. M. Buxton omitted to comment on one important consideration: the conservation status of potentia...
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Letters

01 December 1975
Comments Letters The origin of British Aquatic Warblers In his letter (Brit. Birds, 67: 443-444), Dr J. T. R. Sharrock made the hypothesis that the autumn records of Acrocephalus paludicola in Britain and Ireland are probably to be explained by a reverse migrat...
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Letters

01 December 1974
Comments Letters Eye colour of the Hen Harrier D. I. M. Wallace's remarks (Brit. Birds, 65:358-359) on the eye colour of an immature of the American subspecies of the Hen Harrier Circus cyaneus hudsonius at Cley, Norfolk (see Brit. Birds, 64: 537-542), were confusing a...
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Letters

01 May 1962
Comments Letters Ringed birds in snow Sirs,--During the snowy period of early January 1962, in my garden sanctuary near Welwyn, Hertfordshire, I saw two ringed birds, a Blue Tit (Pants caerukus) and a Long-tailed Tit (Aegithalos caudatus), with their rings thickly coated ...
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