Freeman Bibliographical Database
| Identifier: | A89 |
| Date: | 1837 |
| Concise reference: | Gould, John. 1837. [Observations on the raptorial birds in Mr. Darwin's Collection, with characters of the new species]. Proceedings of the Zoological Society of London 5: 9-11. |
| Detailed reference: | J. Gould, Observations on the Raptorial Birds in Mr. Darwin's Collection, with Characters of the New Species. [Presented 24 January 1837.] Proceedings of the Zoological Society of London, pt. 5(1837), pp. 9-11. |