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Sprague's Pipit: Medium pipit with streaked, brown upperparts, buff breast with dark streaks, and white throat and belly. Tail is brown with white edges. Thin, pale bill. Legs are yellow to pale brown. Its plumage blends well among prairie grasses, making it difficult to spot.
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Smew: Small merganser, mostly white body except for black back, mask, breast bar, and V-shaped nape patch. Wings are dark with large white patches. Gray legs, feet. Feeds on fish, aquatic insects, and their larvae. Swift direct flight with rapid wing beats. Flies in straight line or V formation.
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Steller's Eider: Small eider with black back and collar, white sides, buff-brown underparts with small but distinct black spot on side. White head has a dark tuft, black eye patch and chin. Wings are white with black primaries and a white-bordered blue speculum. Blue-gray bill, legs and feet.
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Stilt Sandpiper: This medium-sized sandpiper has gray-brown upperparts, white rump, heavily barred white underparts, dark cap, white eyebrows and brown ear patches. It has a long, black bill that curves down at the tip and long gray-green legs. It has a powerful, direct flight on long, rapidly beating wings. Sexes are similar.
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Solitary Sandpiper: This medium-sized sandpiper has pale-spotted, dark brown back and rump, white underparts with streaks on neck and sides, dark head and a bold white eyering. It has a black tail with conspicuous black-and-white barred edges; olive-green bill, legs and feet. Feeds on insects and insect larvae, spiders, worms and tadpoles. Direct flight is light and buoyant. Sexes are similar.
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Sharp-tailed Sandpiper: This medium-sized sandpiper has dark brown upperparts and white underparts with faint olive-brown streaks on breast and sides. It has a rufous crown, white eye ring and dark brown wings. The tail is dark brown and pointed in flight. Feeds primarily on mosquito larvae but also takes mollusks and crustaceans. Swift direct flight with rapid wing beats. Sexes are similar.
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Semipalmated Sandpiper: This small sandpiper has scaled gray-brown upperparts, white underparts and fine streaks on the breast and sides. It has a short, stout, straight black bill and black legs and feet. It feeds on insects, worms, small mollusks and crustaceans. Swift flight on rapidly beating wings. Sexes are similar.
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Short-tailed Albatross: Largest and only white-bodied albatross in the North Pacific. The head and nape have a golden-yellow cast, white wings have black edges and tips, and the tail is white with black fringe. Legs and feet are pink-gray. Feeds mainly on squid, but also eats fish and crustaceans. Dynamic soaring, glides for hours. Sexes are similar. Almost became extinct in the late 19th century.
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Spotted Redshank: Large sandpiper, mostly black body in summer except for white rump, white spots on wings, barred tail. Bill is red with black tip. Legs and feet are dark red. Winter bird (shown) has gray upperparts and white underparts. Feeds and forages on land or in shallow water by probing in mud, and sweeping bill back and forth. Swift direct flight when flushed.
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Scott's Oriole: Medium-sized oriole with black hood extending onto breast and back. Belly and rump are bright yellow. The wings are black with yellow shoulder patches and two white bars. Tail is yellow with thick black tip and central line. Strong direct flight with rapid wing beats.
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Summer Tanager: Large tanager, dark-red overall with a large, pale gray bill. Legs and feet are gray. It is the only entirely red bird in North America. Female has olive-yellow upperparts and dull yellow underparts. Some red morph females have a red wash, red splotches, or are entirely red. It specializes in eating bees and wasps, which is why it is also known as the bee bird. Swift direct flight with quick wing strokes.
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Scarlet Tanager: Medium tanager with brilliant red body, black wings, tail. The only bird in North America with this unique plumage. Heavy bill is yellow-gray. Gray legs and feet. Winter male has dull green upperparts, yellow-green underparts, often interspersed with red during molt.
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Smith's Longspur: Medium sparrow, yellow-brown streaked upperparts, black head with white eyebrow and ear patch, and yellow-brown nape, throat, and underparts. Wings have large white bars. Tail is black with white edges. Yellow-brown legs and feet. Feeds on seeds, spiders, and insects.
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Streaked Shearwater: This large shearwater has scaled, dark gray-brown upperparts, white underparts, pale bill and white forehead. White head has variable light to heavy pale brown streaks. Upper tail coverts can be white, forming a pale horseshoe. Legs and feet are pink. Feeds on small fish and squid. Flies with loose angled wings. Light, graceful flapping and gliding. Sexes are similar.
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Sharp-tailed Grouse: Medium grouse with lightly barred brown upperparts and white underparts dotted with chevrons. Head has short crest, yellow-orange eye comb, and pink or violet neck patch exposed when displaying. Tail is pointed and white-edged. Often seen on prairies in the summer.
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Streak-backed Oriole: Large oriole with mostly bright orange body except for black streaks on back. Deep orange-red head and breast contrast with black face, chin. Black wings with two bold white bars. Black tail with white corners. Eats mostly insects. Strong direct flight with rapid wing beats.
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Sedge Wren: Small wren with white-streaked, brown upperparts and pale buff underparts. Eyebrows are pale brown. Tail is short and barred. Bill is short and the legs and feet are pink. One of the most nomadic territorial birds. In any area it may be abundant one year, absent the next.
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Scissor-tailed Flycatcher: Medium flycatcher with pale gray upperparts and head, white underparts and throat, salmon-pink sides and flanks, and dark brown wings with white edges. Tail is long and scissor-like, black above with white outer edges and white below with black inner edges.
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Slaty-backed Gull: This large gull has a slate-gray back, white head, belly, tail, and upper wings; dark outer primaries separated from mantle by row of white spots. Gray underside of primaries; broad white trailing edge to wings. It has pink legs and feet, yellow eyes with red orbital ring and a yellow bill with red spot near tip. Diet includes fish, crustaceans and insects. Sexes are similar.
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