Red-chested Sunbird

Common and widespread powder blue-gray bird of open and semi-open areas with larger trees and hedges, towns, villages, and gardens in tropical and subtropical regions. Mainly feeds at mid-upper levels in trees, eating fruit, and perches readily on phone wires. Rather plain but distinctive appearance, with beady dark eye and fairly stout bill. Populations east of the Andes in South America have broad white wing-bars and look very different.

Large black bill is diagnostic. Slightly larger than similar plovers, with large blocky head. Breeding plumage shows thick black band across breast, white forehead, and bolder face pattern; nonbreeding birds show less contrast. Legs dull pinkish. Found on sandy beaches, usually singly but sometimes in small loose flocks. Medium-brown upperparts similar but slightly paler than Semipalmated Plover, notably darker than Snowy or Piping.

A graceful aerial feeder found over a wide variety of open habitats, especially near water, including marshes and towns. Often chooses 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. The adult male is entirely glossy purple-blue and is inseparable in the field from male Purple Martins. The male Caribbean Martin can be distinguished by its bright white belly. Female and immature Cuban Martins resemble females and immatures of both Purple and Caribbean Martin. Purple Martin in such plumages can be identified by a scaly breast pattern and often fine streaks on the belly, which is lacking on female and immature Cuban Martins. Female Cuban Martins are probably not safely separable from Caribbean Martin, though on average the Cuban Martin has more restricted brown on chest. Note that Caribbean and Purple Martins are not present in this species’ range from March to September, which can help eliminate confusing species. Calls include a harsh “churr,” a buzzy “zwick-zwick,” and a musical buzzy burbling.