Letters

01 March 1977 Comments Letters Interchange between Gannet colonies The paper by M. S. Cullen and R. Pratt (Brit. Birds 69: 88-90) added to the now considerable evidence that relatively massive increases—and sometimes substantial decreases— in the numbers of nest- or site...
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Letters

01 August 1954 Comments Letters SIRS,--A little confusion was caused on the Isle of May in 1953 by people claiming to assign Bluethroats (Luscinia svecica) to the White-spotted race (L. s. cyanecula) on the strength of wing-measurements and the relative lengths of the primaries. They we...
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