ANSALB

 

Bird Identification Guide Sébastien Reeber

 

Wildfowl of Europe, Asia and North America

 

Waterfowl of North America, Europe & Asia

Greater White-fronted Goose Anser albifrons

Eurasian Greater White-fronted Goose Anser albifrons albifrons (Eurasia)

Adult (def. basic)

Juvenile (1st basic)/1st winter (formative)

Pacific Greater White-fronted Goose Anser albifrons sponsa (Pacific coasts of North America)

Adult (def. basic)

Juvenile (1st basic)/1st winter (formative)

More photos from Clive Harris here.

More photos from Clive Harris here.

More photos from Clive Harris here.

More photos from Clive Harris here.

Tule Greater White-fronted Goose Anser albifrons elgasi (Pacific coasts of North America)

Adult (def. basic)

Juvenile (1st basic)/1st winter (formative)

Gambell's Greater White-fronted Goose Anser albifrons gambelli (North America East of the Rockies)

Adult (def. basic)

More photos and comments on orange-billed gambelli from Clive Harris here.

More photos and comments on orange-billed gambelli from Clive Harris here.

More photos and comments on orange-billed gambelli from Clive Harris here.

Juvenile (1st basic)/1st winter (formative)

Greenland Greater White-fronted Goose Anser albifrons flavirostris (Greenland)

Adult (def. basic)

Also check a great blog post from Clive Harris here.

Juvenile (1st basic)/1st winter (formative)

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