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https://macaulaylibrary.org/asset/431011591 (or possibly Bar-headed x Swan x Graylag Goose)
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Research paper
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📷 This image is labeled as Emperor x Greater White-fronted Goose (https://www.feathersite.com/Poultry/NDG/BRKEmperor.html) but I believe it matches EMGO x Lesser White-fronted Goose better.
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Other names: Bro Goose, Snant, Snow Brant
Molt progression of one individual in southern Massachusetts.
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https://macaulaylibrary.org/asset/207212531
https://macaulaylibrary.org/asset/190878201
https://macaulaylibrary.org/asset/83565591
https://macaulaylibrary.org/asset/611515820
https://macaulaylibrary.org/asset/610843959
https://macaulaylibrary.org/asset/610844203
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https://www.inaturalist.org/observations/142827721
📷 (probable. juv)
📷(probable. juv)
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Helpful post regarding the ID of this hybrid.
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https://macaulaylibrary.org/asset/281542131, https://macaulaylibrary.org/asset/262428651 - both of these examples appear to be (close to?) wild-types. See Bird Hybrids for more examples of wild-type Graylag x Swan Geese.
https://macaulaylibrary.org/asset/191151931
https://macaulaylibrary.org/asset/301386471
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Helpful post regarding the ID of this hybrid.
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https://macaulaylibrary.org/asset/420509551
https://macaulaylibrary.org/asset/185673281
📷- Comparison of the shape of the base of the bill. Note the flatter vertical appearance of both Swan Goose and Graylag Goose, and the more angular pushed-in shape of Canada Goose. Graylag x Canada Goose and Swan x Canada Goose hybrids tend to have an intermediate shape between these two.
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Helpful post regarding the ID of this hybrid.
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📷- Comparison of the shape of the base of the bill. Note the flatter vertical appearance of both Swan Goose and Graylag Goose, and the more angular pushed-in shape of Canada Goose. Graylag x Canada Goose and Swan x Canada Goose hybrids tend to have an intermediate shape between these two.
https://macaulaylibrary.org/asset/176585131
https://macaulaylibrary.org/asset/77543271
https://macaulaylibrary.org/asset/387263651
https://www.inaturalist.org/observations/245720119
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