A dabbling duck, gadwalls typically feed by tipping forward to reach underwater for plants. However, they are also known to steal food from coots or other diving birds. This medium-sized gray duck is an infrequent winter visitor in Hawaii. Males are predominately gray with a black rump and a small white wing patch in flight. Females are a mottled brown with a similar white patch on the wing, and an orange line along the edge of the bill.

The map below shows hotspots along our birding trails where you might see this bird.