Weak fluttering direct flight with shallow wing beats. Legs and feet are black. White eyebrows are conspicuous. Breast is gray, variably barred by dark edges on feathers. Forages on ground, low in trees and bushes. Bright red bill with black tip, lower mandible longer than upper. Head and underparts are buff to cinnamon with white throat and vent. Feeds on insects, caterpillars, fruits and berries. To see this please jump to the Iceland Gull species account. The upperwings are gray with black primaries and white secondaries. Mute Swan: Aggressive bird, entirely white, orange bill with large black basal knob and naked black lores. It has black-spotted and streaked upperparts, slightly scaled underparts, a white eye ring, black bill and yellow legs. Whatbird.com logo design courtesy of The Haller Company. Winter birds are duller gray and juveniles are light gray overall. The white-edged side and flank feathers form a striking border between sides and back. Roseate Tern: White below with slight, variable pinkish cast visible in good light; pale gray above with black cap, nape and deeply forked tail that projects well beyond wingtips at rest. Alternates rapid wing beats with short glides. The pale yellow belly distinguishes this species from other Myiarchus flycatchers. Pink-gray legs and feet. Forehead is pale blue; bill is red and yellow-tipped. I spent a good 10 minutes staring up into the tree (finally just plopping on my back) searching for the source. White line divides green speculum and pale blue shoulder patch on wing. Tail has white patches at the base. Head and neck are bright rust-brown during summer. High arcing flight. Black legs, feet. It was first recorded on the Lewis and Clark expedition. The sexes look very similar. Northern Gannet: Very large seabird. It feeds on small fish, crustaceans and insects. Least Tern: This small tern has slate-gray upperparts, white underparts; crown and nape are black, and the forehead is white. Swift direct flight with rapid wing beats. Underparts white but strongly suffused with orange wash, heavily barred and streaked with dark brown. Feeds on insects and nectar. Legs and feet are pink. Alternates several shallow rapid wing beats and short glides. Western Wood-Pewee: Medium-sized flycatcher with dull olive-gray upperparts and pale olive-gray underparts. Sexes are similar. Feeds in shallow water or mudflats exposed at low tide. Band-tailed Pigeon: Large dove, small, purple-gray head and broad neck with distinctive, thin white band on nape. Wings are white with black primary and secondary feathers. Hooked bill is dark, legs are pink. Feeds on crane flies and brine shrimp. Legs are yellow with very long toes. Pomarine Jaeger: The dar morph of this large jaeger is dark brown except for white patches near underwing tips and sides of under tail. Eurasian Wigeon: This large dabbling duck has a gray back, finely speckled gray flanks, a dark rufous-brown head, buff crown and forehead, pink-brown breast, a white belly and gray legs and feet. Dovekie: Small seabird with black upperparts and hood, white underparts, and stubby, black, sparrow-like bill. Monk Parakeet: Medium parakeet, green overall, gray forehead, cheeks, lores, throat. Birds of North America from in Pennsylvania. Most birds migrate, sometimes long distances and sometimes a short distance. Bill is gray. Soars high on thermals. Face is pale yellow-orange with gray cheeks. Diamond-shaped tail has elongated, pointed central feathers. Eats seeds of aquatic plants, grasses and grains, insects and small marine crustaceans. Townsend's Solitaire: Small thrush, gray overall and slightly darker above. Forehead is chestnut-brown and throat and rump are buff.