Tibetan Serin

Distinctive and handsome orange-breasted finch. Note black head of males (solid in breeding season, patchy in non-breeding) and gray-and-brown head of females. Complex wing patterns and white rump patches create a wondrous show when a flock rises up in flight. Breeds in northern woodlands, especially in and around birches; winters in varied wooded habitats (especially with beech trees), semiopen country, and farmland with hedges; sometimes visits gardens and parks with feeders or fruiting trees. Song is surprising and almost ugly for such a well-marked finch, a strange ringing buzz: “eerRRRRNnnn.” Gives a rising “qweee”, a higher-pitchd “tsi, tsi”, and various twittering and nasal flock calls.

Attractive ground-dwelling bird. Slender and long-tailed, bright yellow below with paler throat and grayish-olive back; extremely variable. Tail is black with white outer feathers; often pumps tail up and down while walking on the ground. Young birds lack yellow color, but have distinctive head pattern. Often seen near water. Listen for high-pitched, piercing call note. Common breeder on Arctic tundra from Alaska to Russia; found in grassy and waterside habitats in Southeast Asian wintering grounds and in migration.

Anis are bizarre, coal-black cuckoos with long floppy tails and unique, curiously tall, flattened bills. Smooth-billed occurs in a variety of open and semi-open habitats in tropical lowlands and foothills, typically staying low in shrubs and grasses. Gregarious and not particularly graceful; usually seen crashing around awkwardly in small groups. Flies with choppy wingbeats and long glides. Widespread and common throughout much of South America and the Caribbean, extending as far west as the Pacific slope of Costa Rica and north to Florida. Compare with the very similar Groove-billed Ani, which overlaps in some areas of Central and South America. Note especially the bill shape: Smooth-billed often (but not always) has a taller ridge on the top of the bill, and a sharper angle on the lower edge of the bill. The sides are typically smooth, rarely with weak grooves. Voice is also important: listen for a rising, hawklike whistle with an inflection at the end. Dark eye, size, and habitat help separate from Greater Ani in South America and Panama.