Sexual dimorphism in the yellow-billed shrike Corvinella corvina and in other African shrikes (subfamily Laniinae)
Grimes, Llewellyn G.
Article
1979
Bulletin of the British Ornithologists' Club
99
33--36
BioStor
London, British Ornithologists' Club, 1893-
BioStor: https://biostor.org/reference/112622
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http://creativecommons.org/licenses/by-nc-sa/4.0/
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