Distribution

Blue-tailed Hummingbird occurs in three disjunct populations. It occurs on the Pacific slope of southern Chiapas (Mexico) and Guatemala (Land 1970, Howell and Webb 1995); in El Salvador (where inexplicably scarce; Thurber et al. 1987), Honduras, and northern Nicaragua (Dickey and van Rossem 1938, Monroe 1968, Martínez-Sánchez and Will 2010); and in northern Costa Rica. The status of Blue-tailed Hummingbird in Costa Rica is confused. Stiles and Skutch (1989) considered it to be a vagrant ("accidental") in Costa Rica, from which region they reported only a single specimen and a sight record; but Weller (1999) accepted the poorly known subspecies impatiens, from Costa Rica, as a valid taxon, implying the existence of (small?) population there.

The elevational range of Blue-tailed Hummingbird is from 100-1800 in Mexico and Guatemala, but from near sea level up to only 1200 m in El Salvador, Honduras, and Nicaragua (Howell and Webb 1995).

Endemic to the Americas.

Blue-tailed Hummingbird occurs in secondary forest, at forest edge, in plantations, scrub, and clearings (Howell and Webb 1995, Parker et al. 1996).

None reported.

None reported.