Northern shoveler drake in transition plumage

Shovelers moult late and are the last ducks to come into breeding plumage. They also linger during spring migration than other ducks in eastern Colorado.

Northern shoveler pair in classic feeding pose

The huge bill is fitted with rows of lamellae which the birds use to strain small animals from the water.

Awkward shoveler hen in flight

The huge bill creates center of gravity problems for the shoveler. Consequently they are bottom-heavy.

Shoveler gathering on a large reservoir

When zooplankters such as amphipods (scuds) are plentiful, shovelers will gather in great flocks to feed.