FEMALE GREATER SCAUP, COLONEL SAMUEL SMITH PARK, TORONTO, ON

   We have identified this duck as a  female Greater Scaup in nonbreeding plumage, rather than a Lesser Scaup, as follows

• The rounded head and nape.  The Lesser Scaup has an oval head, a straighter neck and a notch or corner toward the back of the head.
• The scaup has a large amount of white on the face.  This is more indicative of a greater scaup.