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 September 1961 Comments Notes Manx Shearwater d i g g i n g by daylight.--At about 2.30 p.m. on 15th May 1961, I was walking in bright sunlight on a sloping cliff on Skokholm, Pembrokeshire, when I heard a Manx Shearwater (Procellaria puffinus) calling from its burrow. Kneeling down w...
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Notes

01 July 1957 Comments Notes 1956, a female Mallard (Anas platyrhynchos) wearing a British Museum ring (941642) was recaptured in the decoy a t Slimbridge, Gloucestershire. She was accompanied by four ducklings, estimated to be four or five days old. This female was marked at Slimbri...
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