Ryall C, 1992. The pest status of the Indian house crow Corvus splendens in Mombasa and a survey of its expansion of range in coastal Kenya. In: Proceedings of the VIIth Pan African Ornithological Congress, Nairobi, Kenya, Aug 1988 [ed. by Bennun L]. Nairobi, Kenya: PAOCC, unpaginated.

Ryall C, 1992. The pest status of the Indian house crow Corvus splendens in Mombasa and a survey of its expansion of range in coastal Kenya. In: Proceedings of the VIIth Pan African Ornithological Congress, Nairobi, Kenya, Aug 1988 [ed. by Bennun L]. Nairobi, Kenya: PAOCC, unpaginated.