01 December 1984
Comments Letters Tufted Duck carrying young. In connection with the recent notes by Montse Carbonell and Stephen B. Edwards (Brit. Birds 77: 318-319), I should like to draw attention to a previous published account by my husband, the late Dr Jeffery Harrison, of a fema...
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01 February 1971
Comments Reviews Signals for Survival. By Niko Tinbergen and Hugh Falkus. Drawings by Eric Ennion. Clarendon Press, Oxford, 1970. 80 pages; 88 photographs; many coloured sketches. £2. Based on the B.B.C. film which won the Italia Prize for documentaries in 1969, thi...
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