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Are There Mallards in Washington?

Yes, mallards are very common in Washington throughout the year, with resident breeding populations supplemented by migratory birds. These dabbling ducks occupy Puget Sound estuaries, coastal wetlands, and inland lakes and rivers. Washington's abundant water bodies and mild climate support substantial mallard populations year-round, making them one of the most visible waterfowl in the state.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.

Mallard photographed in Washington

Mallard · John Brew CC BY

Mallard photographed in Washington

Mallard · Gavin Slater CC BY

Mallard photographed in Washington

Mallard · Gavin Slater CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in Washington
1
species recorded
965,844
GBIF records
6
birding hotspots
April, May, December
peak months

Yes, mallards are in Washington. Next you'll want:

Real sighting data, source iNaturalist

21,981 verified observations on iNaturalist of mallard have been recorded in Washington, most often in April, May, December.

When mallard are recorded in Washington

Yes, mallards are very common in Washington throughout the year, with resident breeding populations supplemented by migratory birds. These dabbling ducks occupy Puget Sound estuaries, coastal wetlands, and inland lakes and rivers. Washington's abundant water bodies and mild climate support substantial mallard populations year-round, making them one of the most visible waterfowl in the state.

Where Mallards Are Found in Washington

Mallards are widespread throughout Washington in diverse aquatic habitats. Puget Sound and its associated estuaries provide extensive marine and brackish habitat, particularly in areas where freshwater rivers enter the sound. The Nisqually River delta near Olympia, the Skagit River delta north of Seattle, and the Snoqualmie River delta east of Seattle provide critical habitat in freshwater marshes and tidal areas. These river deltas transition between freshwater and saltwater, providing variable habitat conditions mallards exploit. The Ridgefield National Wildlife Refuge in southwestern Washington offers protected marsh habitat. Coastal areas along the Pacific coast and Willapa Hills provide additional habitat, particularly in bays and estuaries. Inland lakes including Lake Washington, Lake Union in Seattle, and numerous mountain lakes host mallards. The Columbia River corridor through central and eastern Washington provides habitat, particularly in slower sections and backwater areas. Smaller lakes and reservoirs throughout eastern Washington attract mallards, particularly during migration. Snake River valleys and associated agricultural areas attract mallards during migration periods. Urban ponds and retention areas throughout Seattle, Tacoma, Olympia, and other Washington cities harbor mallards year-round. Rivers including the Deschutes and Yakima provide additional habitat. Washington's coastal and estuarine systems represent some of North America's most important waterfowl habitat. VisitWashington's wildlife informationfor more details about habitat and other species. Seethe Mallard guide for Washingtonfor more.

Seasonal Distribution and Migration Timing

Mallards exhibit complex seasonal patterns in Washington, with resident breeding populations remaining year-round while migratory birds pass through and winter. Spring migration peaks in March and April as northbound ducks move from Gulf coast wintering grounds to breeding territories in northern regions. Some spring migrants remain to breed in Washington, while others continue to the Pacific Northwest interior and Alaska. By May, most spring migrants have departed, leaving resident breeding mallards. Summer populations are reduced but present throughout, with breeding pairs scattered across marsh and pond habitats. Nesting typically occurs in April through June, with females occupying well-hidden nests. Fall migration begins in August as breeding season concludes. September and October see increasing numbers as birds move south from northern breeding grounds. Peak fall migration occurs in October, with hundreds of thousands of ducks moving through the region. Winter populations in Washington are substantial, with mallards occupying unfrozen water bodies throughout the state. The mild maritime climate of western Washington generally prevents complete water freezing, allowing year-round residence. Eastern Washington experiences greater winter cold, with some water bodies freezing and concentrating mallards on open water and thermal springs. Winter peaks typically occur in December and January. Late winter warming in February prompts early spring movements. Coastal areas remain open year-round, supporting resident mallards throughout winter. Seethe Washington wildlife guidefor more.

Identifying Mallards in the Field

Mallards are large dabbling ducks measuring 20 to 26 inches in length with distinctive sexually dimorphic plumage. Breeding males are immediately recognizable with iridescent green heads that may appear nearly black in shade, white neck rings, and chestnut-red breasts. The body is gray, with black tail feathers and white outer tail feathers. A distinctive curled feather in the tail center is visible when males swim. The bright yellow bill, often with an olive spot, and orange-yellow legs complete the striking pattern. Breeding males are unmistakable. Females are overall brown and mottled, typically appearing buff to medium brown with darker streaking providing camouflage. Female bills are orange-yellow with dark markings. Both sexes possess a bright blue-purple speculum or wing patch visible in flight, bordered by white bars. This blue patch is the quickest field mark for mallard identification in flight. Males in eclipse plumage, worn from summer through early fall, resemble females but retain yellowish bills and often show darker bodies. Young mallards resemble females and take several months to develop full adult plumage. Mallards are vocal birds, with females producing loud quacking calls and males producing soft whistles. The call of a female mallard is one of the most recognizable waterfowl sounds. Seethe national wildlife hubfor more.

Where Mallards Concentrate in Washington

The Nisqually River delta and Nisqually National Wildlife Refuge south of Seattle provide exceptional mallard viewing, particularly during fall and winter migrations. The refuge offers observation platforms, trails, and visitor facilities. The Skagit River delta provides extensive marsh habitat supporting thousands of mallards. Multiple public access points and wildlife areas provide viewing. The Ridgefield National Wildlife Refuge in southwestern Washington near Portland offers quality viewing opportunities with interpretive trails and observation areas. Willapa Hills estuaries and coastal areas concentrate mallards during migration and winter. The mouth of the Columbia River and associated bays provide additional coastal habitat. Lake Washington in Seattle hosts year-round mallard populations with access from urban parks. Green Lake and Union Bay in Seattle provide convenient urban viewing. Rattlesnake Lake and other mountain lakes concentrate mallards during migration. The Sammamish River Wildlife Area provides Puget Sound region viewing. Colville and other inland lakes in northeastern Washington attract mallards, particularly during migration. Eastern Washington reservoirs along the Columbia River provide additional habitat. Skagit Bay areas around Anacortes and La Conner concentrate mallards during migration and winter. Early morning hours provide optimal viewing when mallards actively feed. Fall and winter months from September through February offer peak viewing opportunities. VisitWashington wildlifefor comprehensive refuge and viewing area information.

Mallard Behavior and Feeding Ecology

Mallards are dabbling ducks characterized by feeding through tipping into shallow water to reach submerged vegetation while remaining relatively upright, a distinctive behavior visible and diagnostic for species identification. Their diet consists primarily of aquatic vegetation including seeds, roots, and tubers. In coastal Washington, mallards feed on eelgrass and other marine vegetation. In freshwater marshes, they consume bulrush, pondweed, and other emergent plants. Insects and small crustaceans supplement the plant diet, particularly during breeding season. Agricultural areas adjacent to water bodies provide supplemental feeding on spilled grain and crop residues. Urban mallards consume bread and grain provided by people. Mallards are highly social birds, gathering in flocks of dozens to hundreds during migration and winter. In Puget Sound estuaries, mallards often associate with other dabbling duck species. Pair bonds form in late fall and are reinforced through elaborate courtship displays. Males engage in head throws, chin lifts, and tail cocks while whistling. Females produce loud quacking calls. On water, mallards spend considerable time resting, preening, and maintaining plumage. They rest on larger water bodies during the day and fly to feeding areas at dawn and dusk. Mallards are strong, fast fliers capable of taking off nearly vertically from water. Social organization is fluid, with mallards joining and leaving flocks regularly.

Coexistence and Conservation Status

Mallards are protected under the Migratory Bird Treaty Act, which prohibits harming, killing, or possessing mallards except during regulated hunting seasons with appropriate licenses. Washington's duck hunting season is managed by the Washington Department of Fish and Wildlife in coordination with federal regulations. Specific dates, bag limits, and licensing requirements apply. Hunters must obtain required licenses and follow all regulations. Outside hunting season, all mallards receive complete legal protection. Mallards are harmless to humans and pose no safety risk. They are highly tolerant of human presence in urban areas and parks. No special precautions are necessary when observing mallards. Feeding mallards should be done carefully with appropriate foods. Bread and crackers are nutritionally inferior and should be avoided. Cracked corn and specialized waterfowl pellets provide better nutrition. Excessive feeding discourages natural foraging and may increase disease transmission through crowding. Dogs should be kept away from mallard flocks, particularly during nesting season in spring. The recovery and continued health of Washington's coastal estuaries benefits mallards and supports long-term populations. Habitat protection remains the most important conservation action.

Species Confusion and Similar Ducks

Washington's waterfowl group includes several species that can cause confusion with mallards, particularly female mallards and young birds. Northern pintails are polished dabbling ducks with noticeably long slender necks and slim bodies. Males have white breasts and chocolate-brown heads distinctly different from mallard males. Female pintails appear brownish but have much thinner necks. American black ducks are dark brown overall and superficially resemble female mallards but have much darker plumage, white under-tail coverts, and darker bills. Black ducks show darker speculum patches. Gadwall males are predominantly gray and white, quite different from mallards, while females are subtle brown. Northern shovelers have markedly enlarged spatulate bills very different from mallard bills. Blue-winged teal are much smaller than mallards, about two-thirds the size, with males showing pale blue shoulder patches. Green-winged teal are similarly small with different head patterns. Wood ducks have elaborate plumage and different shapes. Wigeon species have rounder heads and lack mallard characteristics. Canvasbacks have longer necks and different head profiles. Redheads have rounded heads and different coloration. Scaups have dark heads and different body shapes. Studying size, proportions, bill shape, and plumage coloration helps distinguish mallards. Learning vocalizations aids confirmation.

Common Questions About Washington Mallards

Are mallards present in Washington year-round? Yes, mallards occur throughout the year in Washington. Abundance varies seasonally, with highest populations in fall and winter. Are Washington mallards all migratory or do some stay year-round? Washington has both resident breeding mallards and migratory birds that winter here. Some breeding mallards remain year-round, while winter populations include substantial numbers of migratory birds. Do mallards breed in Washington cities? Yes, mallards commonly nest in urban parks and ponds throughout Seattle, Tacoma, and other cities. Breeding success varies depending on predation and human disturbance. What is the largest mallard concentration in Washington? Puget Sound estuaries, particularly the Nisqually and Skagit river deltas, support the largest concentrations with tens of thousands present during migration and winter. When is the best time to observe mallards in Washington? September through February provides peak viewing with maximum populations. Early morning hours offer optimal viewing. Why are mallards so common in Puget Sound? The abundant freshwater and brackish habitat, protected estuaries, and mild maritime climate make Puget Sound ideal for mallards year-round. River deltas provide transition zones between freshwater and saltwater that mallards exploit.

Plan your trip

Best time to see mallard in Washington: April, May, December

See the month-by-month sighting calendar.

When to go

Plan your mallard sighting in Washington

965,844 verified mallard records have been logged in Washington, most recently in 2026. See the GBIF records.

Where to look in Washington

Birding hotspots via eBird (Cornell Lab).

Recent mallard sightings

  • Stanwood Water Treatment Plant · 2026-07-20 09:57 · 45 seen
  • Juanita Beach Park · 2026-07-20 09:38 · 44 seen
  • Juanita Bay Park · 2026-07-20 09:35 · 5 seen
  • The Yard and Garden, Burien WA · 2026-07-20 09:20
  • High Point Pond · 2026-07-20 09:16 · 3 seen

Planning a trip to see mallard? Find places to stay near Ebey's Landing National Historical Reserve on Booking.com.

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