Sayornis nigricans, commonly known as the Black Phoebe, is native to the western and southwestern United States, much of Mexico, Central America, and along the western and Gulf coasts of the United States. It is prominently found in California, Arizona, Texas, and extends southwards through Mexico and into Central America, even reaching parts of northern South America.

The Black Phoebe typically inhabits areas near water sources such as rivers, lakes, ponds, and coastal environments. It prefers open areas with scattered trees, bushes, or human-made structures, which it uses for nesting and perching. This species is often seen in urban and rural settings but tends to avoid dense forests and arid deserts.

Sayornis nigricans occupies a niche as a flycatcher, primarily feeding on insects and small invertebrates. It is well adapted to riparian zones and coastal areas, utilizing the open spaces for hunting flying insects. The species has adapted well to human-altered environments, often nesting on buildings and bridges, taking advantage of human-provided structures for breeding.