The White-faced Ibis (Plegadis chihi) is native to the Americas. The species is predominantly found in the western United States, parts of Mexico, and parts of Central and South America. Specific countries where it can be found include the United States, Mexico, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, and parts of Argentina, Chile, and Uruguay.

The White-faced Ibis typically inhabits marshes, swamps, and other wetlands such as shallow ponds and lakes. These areas often have abundant aquatic vegetation and soft mud or other soft substrates. The species prefers environments that are generally freshwater wetlands, although it can also be found in brackish areas.

The White-faced Ibis is adapted to a variety of wetland habitats where it feeds on insects, crustaceans, and small fish, often probing the mud with its long, curved bill. It plays a role in controlling insect and crustacean populations within its ecosystem. During breeding, this species forms colonies, often in conjunction with other wading bird species, in areas with ample water and nesting materials such as reeds or shrubs.