Visiting the Refuges along the Oregon Coast is rewarding year-round, because each season brings different wildlife viewing opportunities.

Most waterfowl fall into the family Anatidae which includes 147 species of geese, ducks, and swans. Although most waterfowl species differ greatly in size and appearance, they all share some of the same characteristics. All waterfowl have webbed feet, flat and rounded bills, and are mainly water birds. Their feathers are waterproof with a layer of down underneath. Waterfowl habitat is also as diverse as the birds themselves, varying from ocean surf to fields and open meadows to upland streams. Their diets range from freshwater fish to grasses, seeds, and insects to mollusks and other invertebrates. By the summer's end, once the eggs have hatched and both parents have molted, the families will migrate together in flocks. Most waterfowl do migrate, sometimes forming a unique pattern in the sky.

Aleutian Canada Goose (Branta canadensis leucopareia) - This subspecies of Canada Goose breeds in the Aleutian and Semidi Islands of Alaska. The Semidi Island group winters on the Oregon coast at Nestucca Bay NWR. This rather small Canada Goose was on the US Endangered Species List until being delisted in March 2001, when the population made a dramatic recovery after having been reduced to less than 1,000 birds. The Aleutian Canada Goose feeds in the pastures at Nestucca Bay and roosts in the ocean or on Haystack Rock in Pacific City. Like other Canada geese, the Aleutian likes pastures where grass and wetlands are present and can also be found in freshwater, bays, and marshes. They will nest on the ground near water in a nest lined with their down. Clutch size is typically four to eight eggs with a month long incubation period. It can take six to ten weeks for the young to fledge. Their diet is mainly plant matter. Aleutian Canada Geese can be seen migrating in a flock from the central coast of Oregon to the Semidi Islands. At night they can be spotted flying to Haystack Rock Pacific City to roost for the evening.

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Dusky Canada Goose (Branta canadensis occidentalis) - Dusky Canada Goose, also a subspecies, breeds in Alaska and the Middleton Islands and winters in Washington and on the Oregon coast at Nestucca Bay NWR and Oregon Islands NWR. Habitat is similar to the Aleutian subspecies, grazing in wet pasturelands. These geese are the first to arrive in the fall settling at Nestucca Bay and several offshore rocks and islands. Nests are lined with down and made on the ground near water. Clutch size is typically four to eight eggs with a month long incubation period. Young fledge after six to ten weeks. Their diet is mainly plant matter. In 1964, the breeding grounds for the Dusky Canada Goose in the Copper River Delta of Alaska were forever changed when an earthquake of magnitude 8.3 caused enormous uplift and as a result altered the habitat and predation balance endangering this subspecies population.

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American Wigeon (Anas americana) - The American Wigeon's breeding grounds span the Canadian territories, Alaska, the western states of America, the Atlantic coast, and the northern portion of the US It can be found wintering along the Pacific, Atlantic, and Gulf coasts of North America. This goose-like duck falls into the group of ducks called dabbling ducks. Dabbling ducks stay mostly in shallower fresh waters like ponds and marshes. They feed by "dabbling" the surface of the water or tipping instead of diving. They can take to flight by lifting directly off the water. Their diet is mostly plants of which they steal from other birds when resurfacing. Unlike other dabbling ducks, they spend time in bays and lakes, and graze like geese in pastures. Laying begins in May with a clutch size of six to ten eggs and an incubation lasting three weeks. Young fledge five to six weeks after hatching. American Wigeons scare off very easily, so spotting them must be done with care.

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Bufflehead (Bucephala albeola) - Buffleheads breed in Alaska and Canada as well as several western states including Wyoming, Montana, and Washington. Seldom breeds in the mountains of Oregon. They winter along both the Atlantic and Pacific coasts, interior river valleys, and throughout Oregon. This smaller sized duck can be found near fresh and salt water bodies, usually in estuaries or wooded lakes. Buffleheads are cavity nesters, using old woodpecker holes or vacated cavities. Clutch size ranges from six to twelve eggs in a down-lined nest that can be up to twenty feet high off the ground. Incubation lasts about one month and the young fledge fifty days after hatching. Buffleheads are diving ducks. They dive to substantial depths to feed and can travel a considerable distance underwater. Their diet is primarily invertebrates, fish, and some plant life. On the Oregon coast, the Bufflehead is known to eat herring eggs. Unlike other diving ducks who "run" across the water before becoming airborne, Buffleheads take flight by lifting off the water. Their population is considered sensitive due to continuing habitat loss and human disturbance. Look for them at Siletz Bay NWR, and Nestucca Bay NWR.

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Green-Winged Teal (Anas crecca) - One of the smallest dabbling ducks, the Green-Winged Teal moves fast and erratically through the air resembling a shorebird rather than waterfowl. This species breeds in Alaska, parts of Canada, the western states and east to New York and Massachusetts. Although not a common breeder in western Oregon, large numbers winter along the coast in bays and estuaries, mudflats, and flooded agricultural fields. Clutch size ranges from six to eighteen eggs. The incubation period is three weeks and the young will fledge thirty days after hatching. The Green-Winged Teal feeds mainly on plant matter, seeds, and less often, invertebrates. One of the most common ducks next to mallards, these species are often overlooked, but the males whistle-like call is unmistakable.

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Wood Duck (Aix sponsa) - The colorful Wood Duck breeds in British Columbia south to California, and in most areas of the US with the exception of the Great Plains and Rocky Mountains. In Oregon the wood duck breeds in the valleys, interior rivers and lakes, and coastal areas. Wintering occurs mostly in western Oregon, in wet wooded areas. Similar to the Bufflehead, Wood Ducks are cavity nesters, often using nest boxes, previously used cavities, or old Pileated Woodpecker holes. Wood Ducks will occasionally have two broods in a season, with a clutch size of eight to fifteen eggs and an incubation period lasting over thirty days. The young fledge at eight to ten weeks, and soon after jump into the water. The main food sources are acorns, fruits like berries and grapes, nuts, and plant material. In the early part of the twentieth century, Wood Ducks were nearly hunted to extinction for their meat and plumage which was used for flying ties for fishing. Now their population continuously increases with the addition of artificial nesting structures. They can be found at Bandon Marsh NWR where a pair recently had a brood in a nest box.

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Common Merganser (Mergus merganser) - The Common Merganser's breeding grounds extend from Alaska east to Newfoundland and south across most of the northern portion of the US Wintering grounds extend more south into parts of northern Mexico. These diving ducks can be found in almost every part of Oregon where open water is present. The Common Merganser is a cavity nester, often utilizing nest boxes, as well as hollow trees or rock ledges. Laying begins in April or May with a clutch size ranging from six to twelve eggs. Incubation period is four to five weeks, and the young will fledge two to three months after hatching. Common Mergansers live on both lakes and rivers, and can also be found on estuaries and occasionally on salt water. They eat marine and fresh water fish depending on the feeding area. Their diet may include juvenile salmonids, sculpin, trout, shrimp, and insect larvae. Their bills are specially designed for catching slippery fish, having a fine serrated edge that can grip the fish. The Common Merganser can be found at Siletz Bay NWR, and Bandon Marsh NWR.

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Surf Scoter (Melanitta perspicillata) - This sea-duck is commonly seen in large flocks during winter months feeding in the surf off the Oregon coast. They nest by semiwooded freshwater ponds and lakes in Alaska and Northern Canada, where they lay 5-8 eggs in nests made of weeds. Females incubate 28-30 days, and all ducklings hatch simultaneously. In winter, they migrate in huge flocks to the Atlantic coast as far south as the Carolinas, and on the Pacific coast from Alaska to southern California. They get their name from their habit of diving under the surf in search of mussels and crustaceans. The male is easily identified by dark plumage setting off his large striking bill and white head patches. Immature males have the bill of the adult male, but lack the head patches. Females are brown with the same distinctively shaped bill, but without the colors of the male.

All migratory birds are protected under the Migratory Bird Treaty Act, which applies to all migratory birds and their parts including eggs, nests, and feathers and forbids the taking, killing, or possessing any migratory bird, any part, nest, or eggs.