Schneider's Pitta

Round-headed diving duck. Males have black breast, medium gray back, white sides, and yellow eye. Head appears black with a greenish sheen in good lighting, never purplish. Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye. Very similar to Lesser Scaup; note smoothly rounded head without tall peak, puffier cheeks, more extensive white stripe on wing in flight, and larger, broader bill. Can be similar to immature male and female Tufted Duck, but note smoothly rounded head and more extensive white bill base patch in females. Often in flocks with other Aythya ducks. Tends to prefer saltwater bays and coves, but also found in freshwater.

Compact songbird with short bill. Males in much of range are olive above, yellow below, with white throat set in black head; males and females on Norfolk Island are olive-brown with yellowish underparts (brightest on undertail). Females vary across range, with eastern birds having some amount of yellow on the underparts and western birds (formerly treated as full species, “Western Whistler”) being gray-brown above and pale below, lacking yellow. Olive Whistler much browner below, with well-defined whitish bib. Inhabits a great variety of habitats. Bright, whistled song varies, but often has a whip-like ending.

Plump diving duck, typically seen in flocks in coastal areas. Males are completely black with bright orange knob on the bill. Females are brown overall with pale cheek and contrasting dark cap. Note potbellied shape and rounded head in flight. Typically coastal, but migrates over land especially in the Northeast U.S. Often gathers in tight flocks. Dives frequently, feeding on aquatic invertebrates. Breeds on ponds in Arctic tundra.