The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Acclimatisation / Bachman tells me in Audubon. CUL-DAR11.1.14c. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 7.2022. RN1

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.

[14c]

Acclimatisation.— 9

Bachman tells me in Audubon there is most curious history of first appearance of the S. American Pipra Flycatcher, which is now becoming common— likewise of the Hirundo fulva (added by Audubon in Appendix) showing what changes are taking place & how birds are extending their ranges even migratory birds, like swallows.

Of migrations of birds he mentioned many most curious case.— the birds seem to follow narrow bands, certain kinds as gallinules taking the low country near coast & others the mountains, & this

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