Okinawa Woodpecker

Brown-and-white denizen of bubbling streams and brooks. Look for white underparts with dark streaks, light buffy wash on the rear flanks, and bold white eyebrow. Stays on or near the ground, constantly bobbing its rear end up and down. Males sometime perch up high to sing. A very early migrant: arrives on the breeding grounds in eastern North America before most other warblers have even dreamed of starting migration, and arrives back on the wintering grounds as early as July or August. During the breeding season, favors fast-moving streams with lots of rocks to hop on. In the northern parts of its range, often in steep hemlock-lined ravines. Winters primarily in Middle America and the Caribbean, where it’s slightly less picky about habitat, and can be found around slower-moving water. Very similar to Northern Waterthrush, but whiter base color below, brighter pink legs, and broader white eyebrow. Also look for clean white throat (usually streaked on Northern). Best distinguished by song: several piercing clear whistles followed by a complex jumble of notes. Call note very similar to Northern: a loud, metallic chip.

A graceful aerial feeder found over a wide variety of open habitats, especially near water, including marshes and towns. Often seen on exposed perches including power and telephone lines in villages. Commonly found in flocks of up to twenty birds, sometimes mixing with other swallows and martins. Note the male’s diagnostic glossy purple-blue plumage and snow-white belly. Females and immatures are similarly patterned, but have brown mixed with the blue and are probably not safely separable from Cuban Martin. Female and immature Purple Martins are very similar, but they often have a scaly breast and finely streaked belly, with less contrast between belly and chest. Notably, Cuban and Purple Martins are not present in this species’ range from March to September. Calls include a harsh “churr,” a buzzy “zwick-zwick,” and a musical buzzy burbling.

Striking warbler with vastly different male and female plumages. Males are unique deep blue above with black face and sides and white belly. Females are plain brownish-olive with dingy buffy underparts and subtle face pattern. Always look for small white patch on the wing, lacking only on the dullest immature females. Breeds in the understory of mixed forests, favoring hills with dense vegetation. Found in nearly any wooded or shrubby habitat during migration. Winters primarily in the Caribbean. Listen for lazy buzzy song, usually a series of notes with a final long buzz.