Restricted to rivers, lakes, large ponds and the sea coast, this cormorant is usually most apparent sitting on a snag low over the water with its wings extended to dry. It occurs in small flocks and is often associated with the larger Double-crested Cormorant. In flight flocks of these two species fly in \V\ formations with the smaller Neotropic Cormorant obvious. They feed underwater on fish, frogs and insects and often swim and feed in small groups together. The nest is a bulky platform of sticks placed in low trees and usually in colonies with other cormorants and herons.
The four-digit banding code is NECO.