Laura Erickson's For the Birds

This handsome kingbird breeds in Florida and the southernmost parts of eastern Gulf states through Central America, from Cuba to Puerto Rico as well as eastward towards all across the Lesser West Indies, south to Venezuela, Trinidad, Tobago, the Guiana, and Colombia; northern populations winter in Central America. The Gray Kingbird lacks the white outer tail feathers of the Western Kingbird and the white terminal band of the Eastern Kingbird, but by day fully lives up to the shared genus name Tyrannus. By night, these kingbirds often join together in large communal roosts. One roost held 151 birds, spaced close together in mangroves. Some individuals sleep in roosts throughout the year, but the roosts are most heavily used during the non-breeding season, from December to May.

Like other kingbirds, the Gray Kingbird feeds primarily on insects and also takes some fruits and berries, seeds, and lizards.