Used for

• American scaup
• Aythya marila
• Black-head duck, Greater
• Black-head, Greater
• Bluebill
• Broadbill (Duck)
• Greater black-head
• Greater black-head duck
• Greater scaup duck
• Greater scaup sapsucker
• Sapsucker, Greater scaup
• Scaup sapsucker, Greater
• Scaup, Greater