[B92]

Male & Female Birds

Some Parakeets beautifully coloured, but females rather less vivid, so gradations. Goulds Birds of Australia

Nymphicus novæ-[Hollandiæ] (a cockatoo-like Birds, ♀? with splendid crested plume on Head; a good deal of difference in plumage yet ♀ beautiful Gould

Upupa Epops - sexes differ little, fine plumage

Smith S. Africa [Illustrations of the Zoology of South Africa, etc. Volume 2]

Chizærhis concolor with fine plume ♀ like ♂

Aquila coronata ♀ plume on Head

Anas flavirostris ♀ colours like male "only not quite so dark" H. H Pl XC. VI - But a dark coloured Duck with green bar on wing. - Speculum of ♀ less brilliant general plumage not quite so dark like in

[in margin:] Smith. S. Africa

(Back)

[B92v]

Even in some group certain plumes only on speculum & plumes [few words illeg] Humming Bird Gallinaceous [6 lines illeg]

Plumes & gaudy colours not direct effect of conditions, for not common to Both sexes - of no use to male - indeed injurious to female - How then account for presence either in one sex or both sexes. Not least difficulty if a Selective power be granted, even in cases when characters confined to one sex, for new characters often arisen in correlation. Perhaps greatest difficulty is in admitting to tastes of Birds & observation.