Letters

01 March 1979
Comments Letters Field identification of Snowy Egret. When discussing the problem of distinguishing the Snowy Egret Egretta thula from the Little Egret E. garzetta in the field, Stanley Cramp (Brit. Birds 70: 206-214) and I. J . Ferguson-Lees (in...
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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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Letters

01 February 1961
Comments Letters The Len Howard Appeal Sirs--All readers of Miss Len Howard's books Birds as Individuals and Living with Birds have been distressed to learn that her life's work is threatened by building on the land next to her garden sanctuary. For twenty-one years Miss ...
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Letters

01 August 1952
Comments Letters SIRS,--The Ibis for April 1953 will include a group of papers on Visible Migration (particularly in passerine birds) as observed in various countries. The newly-formed Sub-committee on Visible Migration of the British Trust for Ornithology (see below) fee...
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Letters

01 February 1935
Comments Letters SIRS,--May I say something on this vexed subject ? I speak of those territorial species whose young depend upon insects for food. Three sets of facts seem connected :-- (i) T h a t in a cold and wet breeding season we find infertile eggs, chicks dead in t...
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