Figure 5. Cumulative number of the most abundant waterfowl species recorded in the Camargue during winter 2004–05: mallard (Anas platyrhynchos), northern shoveler (A. clypeata), green-winged teal (A. crecca), Eurasian wigeon (A. penelope), gadwall (A. strepera), red-crested pochard (Netta rufina), common pochard (Aythya ferina), tufted duck (Aythya fuligula), and common coot (Fulica atra). This figure shows that numerous birds and bird species are congregated in the same wetlands during winter and can therefore easily transmit pathogens to each other.
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