Darwin Online Manuscript Catalogue
| Identifier: | CUL-DAR84.2.180 |
| Date: | [Undated] |
| Name: | Darwin Charles Robert |
| Attributed title: | [of Draft of Descent,?] cocks to see which will sing longest & I am assured by Mr Yarrell that a good male will sing till he drops |
| Description: | The Treronidae (Ibis '8' Pigeons. Wallace) pigeons differ in irridescence of colours in sexes. |
| Document type: | Draft |