Species: Tachycineta thalassina

Breeding range extends from the Yukon River valley in Alaska and central Yukon Territory and southwestern Alberta south through southern Alaska, British Columbia, southwestern Saskatchewan, Montana, southwestern South Dakota, and northwestern Nebraska to southern Baja California and the northern mainland of Mexico, and through Colorado and western Texas (Bent 1942, Brown et al. 1992, Sinclair et al. 2003). Recent range extensions have been reported in the northeastern part of range (e.g., Saskatchewan, Canada; Wright 1992, Houston 1999). During the nonbreeding season, the range extends from central coastal and southern California and Mexico south regularly to Honduras, casually or accidentally to western Panama and Costa Rica (Terres 1980, AOU 1983, Stiles and Skutch 1989, Brown et al. 1992).