The wild ancestor of almost all domestic duck breeds, a widespread dabbling duck of the Northern Hemisphere. Kept ornamentally and on ponds, it is a strong flier that retains fully wild instincts.
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From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
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Minimum
Shelter + run + pond
4 sq ft shelter + 15 sq ft run / bird + pool
Mallards are wild-type small ducks that fly extremely well and need confinement under cover. A welfare minimum is 4 sq ft of shelter and 15 sq ft of fully roofed run per bird, with deep clean water for full head dunking, a pool ≥ 30 gal per bird, grit, calcium, and predator-proof ½ in hardware cloth. Many regions require a permit to keep Mallards.
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Recommended
Roofed aviary + pool
6 sq ft shelter + 25 sq ft covered run / bird + pool
A 6 sq ft per bird shelter with a 25+ sq ft per bird fully roofed run and a large pool lets Mallards swim, dabble, and pair-bond without escaping. They are seasonal layers (≈ 60 eggs/yr) and need overhead cover both for predator-proofing and to prevent flight.
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Ideal
Large covered pond aviary
10 sq ft shelter + 40+ sq ft covered run / bird + pond
A 10 sq ft per bird shelter with a 40+ sq ft per bird fully roofed aviary over a natural-edge pond is the welfare ideal. Provide aquatic plants for dabbling, soft mud margins, varied invertebrate forage, and a winter draught-free shelter — Mallards thrive when allowed to express natural foraging across shallow water.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
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Egg
Birds develop inside a hard-shelled egg incubated by the parent(s). Egg size, shell color, and clutch size vary by species; the embryo develops over days to weeks before hatching.
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Hatchling / Chick
Hatchlings are either altricial — naked, blind, and dependent on parents (typical of parrots and songbirds) — or precocial — downy, mobile, and self-feeding soon after hatching (typical of poultry and waterfowl). Down gives way to the first feathers.
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Juvenile / Fledgling
Fledglings grow in their juvenile plumage and begin to fly and feed themselves, though they may still beg from parents at first. Juvenile feathering is often duller than the adult and is replaced as the bird matures.
Adult
Adults attain full body size and mature plumage, and are capable of breeding. Many species show distinct adult coloration, and in sexually dimorphic birds males and females differ in plumage, size, or markings.
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Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
Best suited to a pond or large water feature with planted margins and a secure island or shoreline shelter. Provide a predator-proof night house. Mallards are powerful fliers and will leave unless wings are pinioned/clipped or the enclosure is fully netted (note: pinioning is restricted or banned in some jurisdictions). They thrive with ample swimming and dabbling water and natural cover for nesting.
Diet
Natural diet is omnivorous: aquatic plants, seeds, grains, insects, snails, worms, and small aquatic invertebrates. In captivity feed waterfowl/all-flock pellets supplemented with greens, cracked corn, and aquatic forage. Never feed bread, which causes malnutrition and 'angel wing.' Provide grit and deep water for bill cleaning.
Behavior & temperament
Intelligent, alert, and naturally wary; kept mainly as ornamental/wild-type birds rather than for production. Drakes are seasonally aggressive in spring breeding season and can over-mate or harass other birds. Hens go broody and nest in concealed spots. Strong seasonal flight and migratory drive. Excellent foragers; mostly a pet/ornamental and conservation bird.
Health
Hardy and adapted to wild conditions. Susceptible to avian influenza, duck viral enteritis (duck plague), botulism in stagnant water, and lead poisoning from ingested shot. Hybridizes readily with domestic and other wild ducks, a conservation concern for native populations. Bread-heavy diets cause angel wing in ducklings. Drake aggression can injure females.
Tips, DIY & hacks
Check local laws: keeping, releasing, or pinioning wild-type Mallards is regulated in many regions. Keep balanced sex ratios (several hens per drake) to reduce mating injuries. Maintain clean, flowing or refreshed water to avoid botulism. Provide cover and nest boxes for broody hens. Do not release captive birds, as this spreads disease and dilutes wild gene pools.
