01 July 1977
Comments Letters Half a pair of Black-browed Albatrosses In the course of their discussion of proof of breeding (Brit. Birds 69: 277, 457), Bruce Campbell and E. J. M. Buxton omitted to comment on one important consideration: the conservation status of potentia...
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Cliff-Breeding in the House-Martin

01 June 1939
Comments Main paper IN response to the editorial appeal (antea, Vol. XXXII, p, 118) for information on cliff-breeding in the House-Martin (Delichon u, urbica) a number of observers have sent in records. From these it is obvious that breeding under natural conditions is far m...
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