Male and female wood ducks exhibit distinct plumage. Male wood ducks, also known as drakes, are known for their vibrant, iridescent green, purple, and blue heads, along with bold white stripes on their head, neck, and cheek areas. They also have a reddish-brown chest, tan sides, and a black back and tail. Female wood ducks, on the other hand, are more muted in color, appearing grayish-brown with a white teardrop-shaped ring around their eyes and a small crest on their head. Both sexes have a crest on their head, a white belly, and white lines on their back wings.

Male (Drake):
• Head: Iridescent green, blue, and purple with white stripes, a red eye, and a reddish bill.
• Body: Chestnut-brown chest, tan sides, and a black back and tail.
• Wings: Black and blue.
• Overall: Very colorful and striking, especially during the breeding season.

Female:
• Head: Grayish-brown with a white teardrop-shaped ring around each eye and a small crest.
• Body: Mottled gray-brown with white flecks, a white throat patch, and a white belly.
• Wings: The female's wings, when spread, reveal a blue patch (speculum) bordered by white tips on the feathers.
• Overall: More subdued and camouflaged, blending in with their wooded wetland habitats.

Both male and female wood ducks have a distinctive silhouette with a skinny neck, long body, and a long, square tail. They also share a backward-facing head crest. In flight, both sexes show a green speculum on their wings and a white belly.