The lesser and greater scaup are better known as bluebills. As the nickname implies, both subspecies have blue bills, and the two birds are very difficult to differentiate. Each is part of the diving ...

This week’s nature series features the Lesser Scaup, Aythya affinis, one of our most common diving ducks that is well known to hunters as the little bluebill or broadbill. This bird is common locally ...

The scaup, it could be said, are difficult ducks to deal with. Two species occur in North America, but you can’t tell by looking. Well, you can, but you have to know what you’re looking for, and you ...