Wood Duck Identification Guide

Key Field Marks

• Size & shape: A medium-sized duck (about 47–54 cm) with a boxy head, slim neck, long square-ish tail, and a distinctive sleek crest, especially obvious on drakes.
• Male plumage: Glossy iridescent green and purple head with a swept-back crest, bold white facial stripes, red eye and red-based bill, chestnut breast speckled with white, buffy-gold flanks, and a dark back with a thin white line separating breast from flanks.
• Female plumage: Grey-brown overall with a white teardrop-shaped eye-ring extending back from the eye, a shaggy blue-grey crest, and a speckled buffy breast — subtle but distinctive once learned.
• Bill: Short and relatively narrow compared to dabbling ducks like Mallards.
• Behavior: Perches readily on branches and snags overhanging water, unusual for a duck; flies fast and agile through timber, twisting between trunks.

Separating It From Similar Species

• Male Wood Ducks are essentially unmistakable due to their multicolored head pattern and crest.
• Female Wood Ducks are most often confused with female Hooded Mergansers, but the merganser has a thin, serrated bill and lacks the Wood Duck's white teardrop eye-ring.
• Eclipse-plumage males (late summer) resemble females but retain the red eye and red bill base, which females lack.

Where and When to Look

• Habitat: Wooded swamps, beaver ponds, slow rivers, and lake margins with overhanging trees; strongly tied to timbered wetlands rather than open water.
• Range: Widespread across North America east of the Rockies, plus a Pacific coast population; northern breeders migrate south for winter while southern populations are largely resident.
• Season: Best looked for spring through fall in the north; present year-round across much of the southeastern and Pacific coast United States.
• Nesting: Uses natural tree cavities and readily accepts nest boxes placed over or near water — a good clue to local presence.
• Best viewing: Check quiet backwaters and wooded pond edges early morning or late afternoon; ducklings leap from cavity nests within a day of hatching, an event sometimes observed near known nest sites.

Voice

• Females give a loud, rising, squealing "oo-eek, oo-eek," often uttered when flushed and very useful for locating birds in dense cover.
• Males give a softer, thin, upslurred whistle, much quieter than the female's alarm call.