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 February 1935 Comments Letters SIRS,--May I say something on this vexed subject ? I speak of those territorial species whose young depend upon insects for food. Three sets of facts seem connected :-- (i) T h a t in a cold and wet breeding season we find infertile eggs, chicks dead in t...
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