The Eastern Kingbird (Tyrannus tyrannus) is native to North America. Its geographical range extends from as far north as southern Canada to as far south as northern Mexico during the breeding season. It is also found in Central and South America during the non-breeding season, migrating to regions including the Amazon Basin and as far south as Bolivia and Brazil.

The Eastern Kingbird typically inhabits open or semi-open environments. During the breeding season in North America, it prefers areas such as fields, grasslands, orchards, open woodlands, and edges of forests. It often selects habitats near water bodies like rivers and lakes. The climate in these regions is primarily temperate during their breeding period. In their wintering grounds in South America, they inhabit tropical and subtropical environments, often in open or forested areas.

The Eastern Kingbird is an insectivore and is known for its aggressive behavior in defending its territory against intruders, including larger birds. This species plays a role in controlling insect populations, feeding on a variety of flying insects. They often perch prominently to watch for prey, reflecting their ecological niche as aerial foragers. The Kingbird's adaptability to diverse environments, such as open fields in North America and tropical forests in South America, illustrates its versatile ecological role.