The biology of Yellow Wagtails (Motacilla flava L.) overwintering in Nigeria
The English name Yellow Wagtail is commonly used to describe the polytipic species Motacilla flava. More specifically it is also used for the British breeding race M.f.flavissima, and various English names are applied to other races: e.g. Blue-headed Wagtail M.f.flava, Ashy-headed Wagtail M.f.cinere...
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University of Aberdeen
1976
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| Online Access: | http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.477872 |