White feather

Definition and stakes

Popular Science Monthly (1877)

“ The black feather will be black and the white one white. The effect is evidently due to insolation: the black feather appears red because it reflects much less light than the white feather. From the law of simultaneous contrast of colors, the insolated eye seeing the green by white light, the black feather must appear of the complementary color of green, which is red. ”
Source: Wikisource

Portrait of Spencer Fullerton Baird Spencer Fullerton Baird,  A History of North American Birds…

“ Ground-color of the lower parts white, each feather with a medial stripe of black, this throwing off distinct bars to the edge of the feather; the medial black is largest on sides of the breast, where it expands into very large conspicuous spots, having a slight rusty exterior suffusion; the abdomen medially, the anal region, and the lower tail-coverts, are almost unvaried white. ”
Source: Gutenberg

The Zoology of the voyage of H.M.S. Beagle… (1839)

“ Young female. Colour.—Head, back of neck, back, wing coverts and tertiaries barred and mottled, both with pale umber brown (of the same tint as in the male bird) and with pale fulvous orange. On head and back of neck, each feather is of the latter colour, with a mere patch of the brown on its tip; but in the longer feathers, as in the scapulars, upper tail coverts, inner web and part of outer of the tertiaries, each is distinctly barred with the dark brown. Tail as in the old male. Primaries black as in male, with the inner webs nearly white, and marked with short transverse bars. ”
Source: Gutenberg

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