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Olives and their effect on the plumage of Spotted Turtle-Doves Streptopelia chinensis and Crested Pigeons Ocyphaps lophotes in suburban Adelaide

Category: Issue 4
Author(s): David Paton and Penelope Paton
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During winter Crested Pigeons Ocyphaps lophotes and Spotted Turtle-Doves Streptopelia chinensis often develop dark-brownish plumage in suburban Adelaide. Up to 80 per cent of pigeons and doves censused in the Gilberton area developed darker plumage This darkening coincided with the presence of European olives Olea europea in the birds‚ diets. We argue that these pigeons […]

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The population status, longevity and mortality of the White-rumped Swiftlet in Fiji.

Category: Issue 4
Author(s): Tarburton
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The population size of the White-rumped Swiftlet Aerodramus spodiopygius in five Fijian caves has been estimated by up to five methods. The averages of these methods for 1974 are: Dry Cave, 413; Waterfall Cave, 20 994 Ono Cave, west entrance, 345; east entrance, 10 365; Waiyala Cave, 8 430; Cikobia-i-lau, 210. The largest annual average […]

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