Ruddy duck

Scientific name: Oxyura jamaicensis

How weight is recorded: Whole weight

Field notes

Appearance

Males are compact diving ducks with bright chestnut bodies, black caps, and white cheeks; females and non-breeding males are duller grey-brown with a dark line through the face. Both sexes have stiff tail feathers and small, stubby bills.

Size and weight

Males 350–450 g, females 300–380 g; body length 35–43 cm. Males are slightly heavier than females.

Habitat

Ruddy ducks inhabit shallow freshwater marshes, ponds, and lakes with emergent vegetation such as cattails and reeds. They prefer areas with dense plant cover and open water for diving and escape.

Distribution

Ruddy ducks breed across much of North America from western Canada and the northern United States south to Mexico; northern populations migrate south in winter, while southern populations are year-round residents.

Diet

Ruddy ducks eat aquatic invertebrates (chironomid larvae, amphipods, ostracods) and aquatic plants; invertebrates dominate in breeding season, plant matter increases in fall and winter.

Behaviour

Highly aquatic and gregarious, spending most time diving and dabbling in shallow water; generally quiet and unobtrusive. They are reluctant fliers but capable of sustained flight; loafing and feeding occur throughout daylight hours.

Hunting tips

Look for flocked birds on shallow marshes and pond edges at dawn and dusk; they leave subtle dabble-feeding circles and droppings along shorelines and emergent vegetation. Approach from downwind across open water where birds have clear sightlines; use natural cover and move slowly as they dive frequently and spook readily.

Whole weight

This species is logged by whole weight — the animal weighed entire, as taken.

Where it is hunted

Listed as huntable in 3 countries in Huntify.

Names in other languages

These field notes are general species knowledge, not legal advice. Always check the current seasons, quotas and firearm rules where you hunt.