From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[before 18 June 1868]
Source of text:
DAR 84.1: 141–2
Summary:
Coloration of linnets.
Sexual behaviour of black hen bullfinch.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[before 17] Oct 1868
Source of text:
DAR 86: A36, 53; DAR 84.1: 139
Summary:
Both sexes of Crossoptilon auritum (eared pheasant) obtained the red cheeks the first year.
Coloration of the linnet.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
[1–13] May 1869
Source of text:
DAR 181: 79
Summary:
South Down sheep: variability in colouring and patterning of lambs compared with constancy of adult coat.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
26 May 1869
Source of text:
DAR 86: A52a-c, DAR 84.1: 143
Summary:
Migratory male nightingales and blackcaps arrive before females [see Descent 1: 259].
Discusses chaffinch "Peggers".
Disagrees with CD’s opinion that canary mules are fertile.
Display of colour of greenfinches in courtship.
Contributor:
Darwin Correspondence Project
From:
John Jenner Weir
To:
Charles Robert Darwin
Date:
June 1869
Source of text:
DAR 181: 80
Summary:
Loss of juvenile colouring in South Down sheep.
Contributor:
Darwin Correspondence Project