The Descent of Man

Grouse, Richardson, 'Fauna Bor. Americ.:
Birds,' pp. 343 and 359; Major W. Ross King,
'The Sportsman in Canada,' 1866, p. 156; Mr.
Haymond, in Prof. Cox's 'Geol. Survey of Indiana,'
p. 227; Audubon, 'American Ornitholog.
Biograph.' vol. i. p. 216. On the Kalij-pheasant,
Jerdon, 'Birds of India,' vol. iii. p. 533. On the
Weavers, Livingstone's 'Expedition to the Zambesi,'
1865, p. 425. On Woodpeckers, Macgillivray,
'Hist. of British Birds,' vol. iii. 1840, pp. 84,
88, 89, and 95. On the Hoopoe, Mr. Swinhoe, in
'Proc. Zoolog. Soc.' June 23, 1863 and 1871, p.
348. On the Night-jar, Audubon, ibid. vol. ii. p.
255, and 'American Naturalist,' 1873, p. 672.
The English Night-jar likewise makes in the
spring a curious noise during its rapid flight.)
[Fig. 41. Outer tail-feather of Scolopax gallinago
(from 'Proc. Zool.
Soc.' 1858).
Fig. 42. Outer tail-feather of Scolopax frenata.