Nature · Birds

Mallard

Anas platyrhynchos

The familiar green-headed duck of lakes, ponds and slow rivers. Females are mottled brown with an orange bill blotched with black.

Photo: David Anderson via iNaturalist · CC BY

The Mallard is probably the first duck most people learn, and it is as much at home on a mountain lake as in a city park. The male has a glossy green head, a thin white collar, a reddish-brown chest and a gray body, while the female is mottled brown with an orange bill smudged with black. Both show a blue wing patch with white borders.

Mallards are dabblers. Instead of diving, they tip forward with their tails in the air to reach seeds, roots and stems in shallow water, and they also eat insects, crustaceans, tadpoles and small fish. Ducklings start out eating mostly aquatic insects. Females nest on the ground in thick vegetation, sometimes far from water, and lay a clutch of seven to thirteen eggs in a bowl lined with down.

In early summer the males molt and, until about mid-September, look much like the females. Wild Mallards are the ancestors of most domestic ducks, and tame or feral birds often stay on park and campground ponds year-round.

Around Mt. Hood, look for them on lakes, reservoirs, ponds and calm stretches of river. In Oregon they are common all year, both as residents and as migrants passing through.

How to identify it

A large dabbling duck, about 20 to 26 inches long. Males have a green head, yellow bill, white neck ring, reddish-brown chest and gray body. Females are mottled brown with a dark stripe through the eye and an orange bill with black blotches. Both sexes have a violet-blue wing patch bordered with white.

Look-alikes

Many domestic ducks descend from Mallards and can look similar, and feral birds often stay year-round on park ponds. A brown female duck with an orange bill marked in black and a blue wing patch edged in white is a Mallard.

Habitat

Lakes, ponds, marshes, slow rivers and reservoirs, as well as city parks and farm fields. Mallards prefer fresh water year-round and tolerate people well.

Sightings in the forest

263 research-grade sightings in Mt. Hood National Forest on iNaturalist, most recently on October 30, 2026. See them on iNaturalist →