Letters

01 December 1977
Comments Letters Black-headed Gulls foot-paddling on grassland Joh. J. Frieswijk's letter (Brit. Birds 70: 266), recording frequent observations of Black-headed Gulls Larus ridibundus foot-paddling on grassland in the Netherlands, contrasted with my note drawin...
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Letters

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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