From:
Robert Swinhoe
To:
Charles Robert Darwin
Date:
14 Apr 1863
Source of text:
DAR 84.1: 18–19
Summary:
Difference in plumage of Ardeola, a species of heron, in summer and winter. [See Descent 2: 190.]
Contributor:
Darwin Correspondence Project
Showing 1–3 of 3 items
Difference in plumage of Ardeola, a species of heron, in summer and winter. [See Descent 2: 190.]
Describes the similarity in plumage changes between Japanese and Chinese birds on the one hand and British and continental birds on the other. Suggests the changes are due to the warm gulf streams around both islands.
Sends two interesting cases: a flamingo with barnacles covering its legs
and castrated wild asses of Kutch.