RECORD: Darwin, C. R. [18xx.03.38]. [Notes on male birds displaying]. CUL-DAR84.2.198-199. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 9.2020. RN1
NOTE: In Emma Darwin's hand. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR80-86 contain material for Darwin's book Descent of man (1871).
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L. G. Mar 28.
Mr Bartlett after his immense experience with birds of all kinds allows me to state that his is fully convinced that the beauty of the male is admired by female & serves to attract her.
He instanced the gold pheasant which exhibits his splendid frill & turns from side to side before female bird.
L. G. Mar 28
In white Ibis in a bird known to be a female, bill at breeding season changes from yellow to black (as it does in some other species, & a large wattle becomes developed below base of beak.
Inspur-winged goose male is larger & naked skin about head much redder.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 26 July, 2023