Mystery photographs

01 January 1992
Comments Main paper When confronted by a relatively plain species, there is an understandable tendency to try to bypass a disciplined analysis of the subtler aspects of structure and plumage, and to base identification on one or two more-immediate and supposedly 'key...
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Mystery photographs

01 November 1977
Comments Main paper The fine bill, distinctive face pattern and rounded crown give the warbler (plate 123, page 456, repeated at reduced size here) the look of a typical Phylloscopus. Without wing-bars or prominent supercilium, it looks rather ordinary, and there is nothi...
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