Mussel-dropping behaviour of kelp gulls
Siegfried, W.R. (1977). Mussel-dropping behaviour of kelp gulls. S. Afr. J. Sci. = S.-Afr. Tydskr. Wet. 73: 377-341
In: South African Journal of Science = Suid-Afrikaanse Tydskrif vir Wetenskap. Academy of Science of South Africa: Johannesburg. ISSN 0038-2353; e-ISSN 1996-7489, more
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