Measurements:[2] The breeding habitat of the black-throated green warbler is coniferous and mixed forests in eastern North America and western Canada and cypress swamps on the southern Atlantic coast, with preference for dense stands of conifers.

These birds migrate to Mexico, Central America, the West Indies and southern Florida.

Some birds straggle as far as South America, with the southernmost couple of records coming from Ecuador.

[4] Black-throated green warblers forage actively in vegetation, and they sometimes hover (gleaning), or catch insects in flight (hawking).

Insects are the main constituents of these birds' diets, although berries will occasionally be consumed.