Newbigin, Marion I. (Marion Isabel), 1869-1934 · London, J. Murray · leaf 278
chap, xiii THE COLOURS OF BIRDS 263 feathers, we shall consider their characteristics in detail. We shall take first a quill, such as one of the primaries of the wing (see Fig. 1). Such a feather consists of a central axis or stem bearing on its upper portion a large number of lateral growths — the… … Fig. i.— Feathers of sun- birds to show relation between colour and shape. The quill-feather was uniformly coloured except for a slight edging of metallic colour at one side , the short feather shows three zones— a terminal metallic zone, a median dark-coloured and slightly V-shaped zone, and a…
Animals -- Color · Plants -- Color
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