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Imperfectly known. In W Africa recorded Ghana only in rains but status uncertain; resident Nigeria but breeds in N only in Rains, and latitudinal movements probably occur, night migrants being recorded Dec; in N Gabon occurs irregularly Nov-Mar and night migrants recorded ; status elsewhere uncertain. Present Kenya May-Sept and Nov; breeds during rains; night migrants recorded May and coastal movements May-Jul. From Tanzania southwards recorded in breeding areas Dec-Mar; much breeding habitat ephemeral so occurrences irregular and periods of residence may be short; odd birds may remain during dry season if suitable habitat persists. night migrants recorded S Tanzania, May and Dec, and N Zambia, Mar. Sept record from S Namibia, and 7 scattered records from South Africa (Mar-Jun), are attributed to vagrancy, possible coastal and inland migration, and birds displaced from normal wintering areas by drought conditions; rains records from Nile floodplain, Transvaal, suggest that breeding range may extend to South Africa in years of good rainfall. In S Africa assumed to be a wet-season breeding visitor which treats towards equatorial regions after breeding. Vagrant to Algeria in Jan, Libya in Feb and Aldabra in Dec   (del Hoyo J, Elliott A, Sargatal J (eds), 1996)

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