Breeding Bird Assemblage in a Mosaic of Urbanized Habitats in a Central European Sity за авторством G. Kopij

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Avian Diversity Along an Altitudinal Gradient in Highveld/Drakensberg Grasslands за авторством G. Kopij

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Avian Communities of a Mixed Mopane-Acacia Savanna in the Cuvelai Drainage System, North-Central Namibia, During the Dry and Wet Season за авторством G. Kopij

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Avian Diversity on the Sandstone Cliff Outskirts of the Maloti/Drakensberg ‘Hot-spot' Area in Southern Africa за авторством G. Kopij

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The Prevalence and Intensity of Louse (Pthiraptera, Mallophaga) and Tick (Acarina,Ixodidae) Infestation of Birds in South African Grassland за авторством G. Kopij, R. D. Price

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