Rufous-naped Ground-Tyrant

Confusing forest species, rare and difficult to find among mixed flocks. Typically stays at middle levels. Overall dull olive with yellower underparts and proportionally large gray head. Most noteworthy are the stout bill and large eye with a thin whitish eyering.

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.

Small songbird with long, pale-tipped tail, tiny, thin bill. Gray above, pale below, with narrow pale wingbars and a thin black border between white throat and chest. Frequently cocks and fans tail. Subspecies vary in upperparts tone and extent of white in the tail. Inhabits wide range of habitats, very active in foraging, and rarely perches in the same place for long.