RECORD: Darwin, C. R. n.d. Mr Gould / Urosticte Benjamini. CUL-DAR84.2.110. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2022. RN2

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. 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).

Darwin cited this in Descent 2: 151.


110

(1

Mr Gould

Toucan Beak

♀ Pheasant with short tails

Urosticte benjamini: the female has all tail-feathers greenish-black except white tips to 2? 6 - exterior ones central ones. How many tail feathers? (10) In male how many of the central tail-feathers are tipped with white? (4) Relative shape & size of tips in the two sexes.

How much white in general plumage of both sexes — only a very little white ear-tufts

In Metallura are the four central tail feathers specially ornamented. No, but 6 laterals in ♀ often tipped with white

Young male of Urosticte like old but rufous throat instead of rich purple throat as in old male

The young males here resemble old males

Ask to see ♂ & ♀ Aïthurus polytmus to see whether both beautiful

110v

I suppose that the young of Heliothrix Auriculatus resemble the female in absence of gorgitte [gorget] & ear tufts & in greater length of tail? I suppose that the tail of the young male actually becomes reduced Yes; but this occurs with Hawks in length with advancing age? Difference not very great in length of tail between sexes.

"The young resemble the ♀ but have spots of pale bronzing at tips of each breast & throat feathers

Are the young of Lampornis known, (in which females have more brilliant tails than the males) & do they resemble the adult males in their tails. Yes. What other genera are there in which females are more brilliant than the males? Toucans


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

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