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Fraser, C., on the different colours of the sexes in a species of Squilla. Fraser, G., colours of Thecla. Frere, Hookham, quoting Theognis on selection in mankind. Fringilla cannabina. Fringilla ciris, age of mature plumage in. Fringilla cyanea, age of mature plumage in. Fringilla leucophrys, young of. Fringilla spinus. Fringilla tristis, change of colour in, in spring; young of.
For the goldfinch of N. America, Fringilla tristis, Linn., see Audubon, 'Ornithological Biography, vol. i. p. 172. I am indebted to Mr. Blyth for information as to the Buphus; see also Jerdon, 'Birds of India, vol. iii. p. 749. On the Alca, see Macgillivray, 'Hist. Brit. Birds, vol. v. p. 347. On the Fringilla leucophrys, Audubon, ibid. vol. ii. p. 89.
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