What does a hybrid look like?
Hybrids can look like small Mallards, a Mallard-Koloa maoli mix or large Koloa maoli. Sometimes it is obvious, sometimes not. When viewing ducks, overall size and behavior are good cues. Male hybrids are usually larger, have a lot of green on their heads and behave differently than Koloa maoli. They are bold and not secretive. For example, hybrids and feral Mallards are common in urban and park ponds, travel in large flocks and behave like domestic ducks; Koloa maoli are more common in remote wetlands and streams where there are few people, traveling alone, in pairs, or in small flocks, and they behave like wild ducks.
