Letters

01 June 1969
Comments Letters Bill-length as a field-character of the White-winged Black Tern ? In his paper on 'Juvenile and winter plumages of the marsh terns' (Brit. Birds, 53: 243-252) Kenneth Williamson differentiated without qualification between the bill of the Black Tern Chlid...
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Notes

01 October 1953
Comments Notes The winter food and ecological distribution of Greenland Whitefronted Geese in Britain.--It has long been evident that the natural habitat and the distribution of the typical race of the White-fronted Goose (Anser a. albifrons) and of the Greenland form ...
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