Asks about camouflage of birds in the Sahara desert.
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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Asks about camouflage of birds in the Sahara desert.
Thanks for interesting letter. ‘How very curious the case of the bright-coloured birds which conceal themselves in holes!’
Thanks for answers to questions, but declines loan of specimens.
Will answer CD’s queries when he returns home in a month.
On the coloration of 26 species of Saharan birds.
Sexual differences in plumage of birds; various species compared.