Letters

01 February 1995 Comments Letters Bernard Zonfrillo (1994) did well to remind us of the anniversary of the extinction of the Great Auk Pinguinns impennis. I have visited many of the world's museums and have examined specimens of the Great Auk and other extinct species, and just handlin...
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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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