Both species are white with black outer wings, but snow geese are noticeably larger than Ross’s geese. And in Colorado snows outnumber Ross’s about a thousand to one.

Large geese flocks are often a mix of up to five different species, including Snow, Ross's, Canada, Cackling and Greater White-fronted Goose. Cackling Goose appears as a miniature-sized Canada ...

Like the white-fronted goose it, too, is a winter visitor here. In areas such as ours, some of the Canada geese are year-round residents, and there is a lot of cross-breeding.

We studied diet selection of the globally threatened lesser white-fronted goose Anser eythropus at a spring staging area on the island of Hailuoto (64°00′N, 24°45′E), off the western coast of Finland.