Letters

01 December 2001
Comments Letters When watching House Martins Delichon urbica in 1967, I wrote in my notebook: `Is the mud for the structure of their nests carried on, rather than in, their beaks?'. My impression then was that the birds carried up the mud on the beak, and pressed it in...
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Letters

01 August 1946
Comments Letters --The habit, referred to by several contributors to this and the previous volume T f this journal (antea, Vol. xxxviii, pp. 206, 300, 360, Vol. > xxxix, pp. 159,160) in which parent birds of many species probe into the nest lining beneath the young, has b...
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