Letters

01 September 1983 Comments Letters The possibility of east Mediterranean Manx Shearwaters occurring in British waters Manx Shearwaters of the race Puffinus p. mauretanicus, known colloquially as the 'Balearic Shearwater', occur regularly off the English south coast during the summer mon...
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Letters

01 November 1966 Comments Letters Fault-bars as a means of ageing birds Sirs,---Last year I read a letter by C. J. Mead on the ageing of birds by means of fault-bars (Brit. Birds, 58: 227-228), in which he referred to the work of W. E. Glegg who noted fault-bars on the tails of 737 bird s...
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