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Anser
genus of Anatidae within Anseriformes

trivial name latin name name specimens
Kolgans
Anser albifrons 		Anser albifrons 5 5
Keizergans
Anser canagicus 		Anser canagicus 2 2
Grauwe Gans
Anser anser 		Anser anser 12 12
Ross' Gans
Anser rossii 		Anser rossii 2 2
Zwaangans
Anser cygnoides 		Anser cygnoides 1 1
Kleine Rietgans
Anser fabalis 		Anser fabalis 4 4
Kleine Rietgans
Anser brachyrhynchus 		Anser brachyrhynchus 3 3
Sneeuwgans
Anser caerulescens 		Anser caerulescens 1 1
Indische Gans
Anser indicus 		Anser indicus 2 2

species comparison1)

1) According to Hartmann (2000a, 2000b and 2016)

Random specimens

Kolgans
Anser albifrons
Grauwe Gans
Anser anser
Kleine Rietgans
Anser brachyrhynchus
Kleine Rietgans
Anser fabalis
Ross' Gans
Anser rossii
Grauwe Gans
Anser anser
Ross' Gans
Anser rossii