Velvet Scoter - It winters further south in temperate zones, Europe as far south as Great Britain, and on the Black and Caspian Sea. Small numbers reach France and northern Spain. It forms large flocks on suitable coastal waters. These are tightly packed, and the birds tend to take off together.
Black Scoter - It winters further south in temperate zones, on the coasts of Europe as far south as Morocco. It forms large flocks on suitable coastal waters. These are tightly packed, and the birds tend to take off and dive together.
Surf Scoter - It winters further south in temperate zones, on the coasts of the northern USA. Small numbers regularly winter in western Europe as far south as Great Britain and Ireland. Some birds may over-winter on the Great Lakes. It forms large flocks on suitable coastal waters. These are tightly packed, and the birds tend to take off together.