Archive image from page 387 of The descent of man . The descent of man : and selection in relation to sex descentofmanseledarw Year: 1874 374 THE DESCENT OF MAN. (d, e, f) in the female. Even the bones of the wing, which sup- port these singular feathers in the male, are said by Mr. Eraser to be much thickened. These little birds make an extraordinary noise, the first 'sharp note being not unlike the crack of a whip.'''

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