Emperor Goose Anser canagicus (or Chen canagica)

This species' native range is restricted to Alaska and north-easternmost Siberia so is perhaps an unlikely contender for vagrancy to Europe. Extralimital records have occurred within North America. However it is a popular species in waterfowl collections and escaped birds do appear in Europe from time to time.

The birds in these photos are all still in captivity.

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captive Emperor Geese, Martin Mere (Lancashire, UK), 26th December 2014

 

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captive Emperor Goose, Blakeney collection (Norfolk, UK), 11th May 2006