🦆 Mallard — Species ID Dossier

Anas platyrhynchos · Episode 7 of 59

That green head isn't just green — it shifts from emerald to teal depending on the angle of light. The Mallard is so common it becomes invisible, but look closer and there's a genuinely spectacular duck hiding in plain sight.

Swipe through all four cards for the full field-ID picture: plumage marks, flight pattern, the call that literally defined "duck," and three look-alikes that trip up even experienced birders.

Card 1 — Perched portrait Male Mallard: iridescent green head, yellow bill, white neck ring, chestnut breast, gray body, curled black tail feathers, orange feet. Blue-purple speculum visible on the folded wing. Female inset: warm mottled brown, orange-and-black bill.

Body length 23 in (58 cm) · Wingspan 35 in (89 cm) · Weight 2.4 lb (1.1 kg)

Card 2 — Flight view Dorsal: the blue-purple speculum flanked by clean white bars is the diagnostic mark — visible at distance. Ventral: stark white underwing linings contrast sharply with dark flight feathers. Broad, powerful wings; neck outstretched; orange feet tucked behind the tail.

Card 3 — Calls The female owns the quack everyone knows — a loud, classic descending series: KWAK-kwak-kwak-kwak-kwak (dropping in both pitch and volume). The male? A soft, reedy rasp: rrebb-rrebb — more rusty hinge than "duck."

Mnemonic → Female: LOUD then fading, her domain · Male: soft rasping creak

Card 4 — Look-alikes Three species that cause real ID confusion:

American Black Duck — dark chocolate-brown all over (no green head on males), violet speculum bordered narrowly in black instead of white, orange-red feet
Mottled Duck — like a female Mallard but darker, with a clean buffy face contrasting a dark cap, green (not blue-purple) speculum; Gulf Coast and Florida only
Gadwall — male has intricate gray scalloped body, distinctive white speculum (unique among dabbling ducks), and a bold black rump

Year-round across North America — pond edges, park lakes, rivers, marshes. The bird that taught most of us what a duck is.

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🦆 Mallard — Species ID Dossier

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