| Further notes on age of first breeding, plumage and biometrics of kelp gulls in South Africa |  |
| Whittington, P.A. (2009). Further notes on age of first breeding, plumage and biometrics of kelp gulls in South Africa Afr. J. Mar. Sci. 29(3): 299-302 |
| In: African Journal of Marine Science. NISC: Grahamstown. ISSN 1814-232X , meer |
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