Invasive mink

Photo: GB Non-native Species Secretariat

An American Mink (Neovison vison), an invasive species in Britain, attacks an unfortunate juvenile gannet.   This skilled predator consumes small mammals like voles shrews, rabbits and rats, plus fish, frogs, eels and crayfish, as well as birds and eggs.   American Mink were introduced to Britain in the 1920s, but its numbers are declining.
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BarrytheBirder