Field Studies of Some Rarer British Birds
Field Studies of Some Rarer British Birds
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In our eReader you can find the full English version of the book. Read Field Studies of Some Rarer British Birds Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Field Studies of Some Rarer British Birds
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The adult Chough's plumage has already been described, but quite full plumage is not, I think, obtained until the bird's second autumn-moult. Anyhow, with a pair kept captive, the really red bill and legs had not been acquired at the age of nearly a year, those parts then still possessing the orange-wash of immaturity ; and as it is a fact that I have still to meet with or hear of a pair of breeding Choughs lacking the full insignia of totally red bill and legs, one may fairly conclude that the... species fails to breed until nearly two years old. Moreover, in some Chough districts, I have cer- tainly seen parties of the birds in nest-time out of all proportion numerically to the recognised breeding- stock. Assuredly, some of these sus- pected non-breeders have had orange-red bill and legs.
When first hatched, young Choughs are blind, remaining so for four or five days. To begin with CHOUGHS 87 they are naked and pink-skinned, with leaden markings down the feather-tracts ; their irides, when eventually visible, are hazel.
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To quickly assess the difficulty of the text, read a short excerpt:
The adult Chough's plumage has already been described, but quite full plumage is not, I think, obtained until the bird's second autumn-moult. Anyhow, with a pair kept captive, the really red bill and legs had not been acquired at the age of nearly a year, those parts then still possessing the orange-wash of immaturity ; and as it is a fact that I have still to meet with or hear of a pair of breeding Choughs lacking the full insignia of totally red bill and legs, one may fairly conclude that the... species fails to breed until nearly two years old. Moreover, in some Chough districts, I have cer- tainly seen parties of the birds in nest-time out of all proportion numerically to the recognised breeding- stock. Assuredly, some of these sus- pected non-breeders have had orange-red bill and legs.
When first hatched, young Choughs are blind, remaining so for four or five days. To begin with CHOUGHS 87 they are naked and pink-skinned, with leaden markings down the feather-tracts ; their irides, when eventually visible, are hazel.
What to read after Field Studies of Some Rarer British Birds?
You can find similar books in the "Read Also" column, or choose other free books by John Walpole Bond to read onlineMoreLess
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