[53] Geoffrey Mortimer (W.M. Gallichan), _Chapters on Human Love_, pp. 17-18. [54] Letourneau, _Evolution of Marriage_, p. 16. [55] Letourneau, _Evolution of Marriage_, p. 12. [56] _Evolution of Sex_, pp. 7-8. [57] Epinas, _Soc. Animales_, p. 326; Darwin, _Descent of Man_, p. 433. [58] Letourneau, _Evolution of Marriage_, p. 27. [59] Ellis, _Psychology of Sex_, Vol. VI. p. 422. [60] One of the most charming accounts of the loves of birds is given in a chapter on "Music and Dancing in Nature," in a volume entitled, _The Naturalist in La Plata_, by W.H. Hudson. [61] Audubon, _Scenes de la Nature_, Vol. I. p. 350. [62] Audubon, _Scenes de la Nature_, Vol. II. p. 50. [63] E. Selous, _Bird Watching_, pp. 15-20; Havelock Ellis, _Psychology of Sex_, Vol. III. p. 25. [64] The jay is the only bird I know whose habits in this respect are different. Noisy and active during the winter the male becomes exceedingly quiet with the approach of the pairing season. This may possibly be explained by the fact that the two sexes of these beautiful birds are practically alike; thus there may be less temptation for the male to show off as the handsomer bird. [65] J. Lewis Bonhote, _The Birds of Britain_, p. 272. It is from this work I have taken many facts relating to birds. See also A.R. Wallace, _Darwinism_, p. 287. [66] Wallace states that these love-movements are more commonly performed by birds with dull plumage who have no special beauties to display to their mates, but the custom, as we have seen, is by no means confined to such birds. [67] _Notes of a Naturalist on the "Challenger,"_ quoted by Wallace, _Darwinism_, p. 287. [68] "The Ostrich," _Zoologist_, March 1897; quoted by Havelock Ellis, _Psychology of Sex_, Vol. III. p. 34. [69] Audubon, _Scenes de la Nature_, Vol. I. p. 317. [70] J. Lewis Bonhote, _The Birds of Britain_, p. 39. [71] Audubon, _Scenes de la Nature_, Vol. I. p. 383. [72] Epinas, _Societes Animales_, p. 299. [73] _Argentine Ornithology_, Vol. I. p. 148; quoted by Havelock Ellis, _Psychology of Sex_, Vol. III. p. 33. [74] Wallace, _Darwinism_, p. 284; also J. Lewis Bonhote, _The Birds of Britain_, p. 319. [75] Letourneau, _Evolution of Marriage_, pp. 14-15. [76] Wallace, _Darwinism_, p. 287. [77] H.O. Forbes, _A Naturalist's Wanderings_, p. 131; quoted by Havelock Ellis, _Psychology of Sex_, Vol. III. pp. 33-34. [78] Darwin, _Descent of Man_, p. 438. [79] Epinas, _Soc. animales_, p. 326; and Letourneau, _Evolution of Marriage_, p. 14. [80] Darwin, _Descent of Man_, p. 438; Letourneau, _op. cit._, p. 13. [81] _Annali del Museo civico di storia naturale di Genova_, t. IX. fasc. 3-4, 1877, quoted by Letourneau, whose account I give; _op. cit._, p. 14.