Letters

01 November 1986
Comments Letters Depths to which auks dive. With reference to the recent note on 'Razorbill [Alca torda] swimming at depth of 140 m' (Brit. Birds 79: 339), I draw attention to a paper published in The Auk last year on 'Diving depths of four alcids' by John F. Piatt and...
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Letters

01 April 1986
Comments Letters Escapes? Some years ago, Derek Goodwin and the late Derrick England published some long comments on the problem for birdwatchers of escaped cage birds (Brit. Birds49: 339-349; 67: 177-197). Since those papers, a new generation of birders has appeared, ...
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