new visitors in our area, identified thanks to Sange who knows the name of all the birds in the world !................................................ The greater scaup (Aythya marila), just scaup in Europe or, colloquially, "bluebill" in North America is a mid-sized diving duck, larger than the closely related lesser scaup. It spends the summer months breeding in Alaska, northern Canada, Siberia, and the northernmost reaches of Europe. During the winter, it migrates south to the coasts of North America, Europe, and Japan.