The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. 1858.03.23. Abstract of Sclater, On some new or little-known species of accipitres, in the collection of the Norwich Museum. CUL-DAR45.80. 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 10.2022. RN2

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library William Huxley Darwin. The volume CUL-DAR45 contains notes for Natural selection chap. 4 'Variation under nature'.

[80]

Zoolog. Soc. March 23 /58/ Sclater on the Urubitinga unicincta, extraordinary variation in Beak. —What is character of Beak? I cannot find Bird in any of my Books No it is Falco urubitinga (yes) of Linn; probably not remarkable — Brazilian Bird Cuvier Regne animal.

{Mr. Sclater says this is single case of great Variation; & the Beak noways remarkable.

Ch 7 IV.

Sclater, Philip Lutley. 1858. Note on the variation of the form of the upper mandible in a rapacious bird Proceedings of the Zoological Society of London 26: 150 [CUL-DAR.LIB.PER-U1358]

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