Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals (1892)
Beddard, Frank E. (Frank Evers), 1858-1925 · London, S. Sonnenschein & co.; New York, Macmillan & co. · leaf 277
Fig. 30.—Humming bird. … Fig. 31.—Argus Pheasant. sexual coloration. Every gradation is found, from perfectresemblance, such as is afforded by the goldfinch, to theextreme differences exhibited in the case of the birds ofparadise. As a general rule the male is distinguished bygreater brilliancy of tints, and by the…
Color of animals
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