Letters

01 September 1970
Comments Letters Melanistic White-fronted Geese Further to my note on melanistic European White-fronted Geese Anser albifrons albifrons (Brit. Birds, 63: 131), Eckhart Kuyken has drawn my attention to his recent paper on melanism, albinism and other plumage variants in wi...
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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 April 1939
Comments Notes THE following few notes were made mostly during the summer of 1938, and are the result of short expeditions and visits to the two counties. CHOUGH (Pyrrhocorax p. pyrrhocorax).---It was pleasing to be able to count twenty-one together on the grassy slopes...
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