File:The birds of the British Isles and their eggs (1919) (14755751395).jpg

Identifier: birdsofbritishis00cowa (find matches)
Title: The birds of the British Isles and their eggs
Year: 1919 (1910s)
Authors: Coward, T. A. (Thomas Alfred), 1867-1933
Subjects: Birds -- Great Britain Birds -- Eggs Great Britain
Publisher: London New York : F. Warne
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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ng morethan it uses—an unexplained waste of energy. Cock-nests these are called, but though the male builds it is not certainthat he is the only wasteful worker; some are never lined, somebut half finished. The normal round nest is tucked into a holein a wall, tree trunk, crack in a rock or corner of a building,but it is often built in bushes, overhanging boughs and the litterwhich accumulates in branches washed by floods. It is truethat the materials used often aid concealment—grass in a hay-stack, moss on a rock, lichens on a tree, leaves amongst litter—but this is probably unintentional, due to the accessibility ofthese substances ; many nests are suicidally conspicuous (Plate98). Dead leaves are largely used in the outer envelope, butthe lining of moss, hair or feathers varies in quantity as well asmaterial. On two occasions I have found nests containing eggsincompletely domed ; they were mere cups in holes with theentrance reduced by a slight arch of grass. On the moors the
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