Letters

01 September 1991 Comments Letters Roosting behaviour of seabirds. It is human nature to avoid raising even obvious questions when no answer appears to be in sight. I nevertheless raise such a question here. Birds of the open ocean, far from land, must not only roost but also sleep on t...
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Letters

01 December 1971 Comments Letters International Ornithological Congresses In 1960 you were kind enough to allow me to expose myself in the van of some correspondence on the International Ornithological Congresses (Brit. Birds, 53: 583-584; 54: 80-92, 170-171). Since I gather from your rec...
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