This small white goose is similar in plumage to the snow goose in all ages. In mixed flocks, the Ross's smaller size, shorter neck, head and bill profile and more rapid wing-beat may be apparent.
They are a common spring and fall migrant through Klamath and Harney basins. During migration and on wintering grounds, the Ross's goose uses lakes and shallow marshes for roosting and agricultural crops and irrigated hay meadows for feeding.
They arrive in Oregon around mid-October and leave around mid-November to continue their migration. They are a common spring and fall migrant through Klamath and Harney basins.