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Reviews

01 April 1968 Comments Reviews The Pictorial Encyclopedia of Birds. By J. Hanzak, Paul Hamlyn, London, 1967. 582 pages; 1,220 photographs (45 in colour) and 7 drawings. 30s. This Anglo-Czech production, refreshingly inexpensive as such, is edited by Bruce Campbell, whose foreword de...

Wigeon X Chiloe Wigeon hybrid resembling American Wigeon

01 April 1968 Comments Main paper It has been established that some interspecific hybrids among ducks and geese (Anatidae) strongly resemble one parent or even another species altogether, thus causing problems in field-identification. An extreme case in Britain is the hybrid Pochard Ay...

Letters

01 April 1948 Comments Letters SIRS,--Messrs. Wagstaffe and Williamson's paper (antea, Vol. xl, p p . 322-325), on t h e cabinet colour changes in bird skins, will be read b y all workers in systematic ornithology with great interest. That these changes occur is of course well known, a...

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Reviews

Wigeon X Chiloe Wigeon hybrid resembling American Wigeon

Letters

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