Black chinned hummingbird7/20/2023 This species winters in northeast and western Mexico (Howell and Webb 1995, Boyle 1998, Baltosser and Russell 2000, Patti 2004, Wahl 2005, Wise-Gervais 2005, Sauer et a. Outside Texas Black-chinned Hummingbirds breed in suitable habitat from British Columbia, Washington, Oregon, California and northern Baja California east to extreme western Montana, southwest Wyoming, Colorado, Oklahoma and northern Mexico. The map and data from 3 Texas routes with the highest averages (2.7-4.4) in the North American BBS in Callahan, Berth and Kendall counties, show Texas has the highest abundances of this hummingbird in North America (Price et al. The area of highest relative abundance in Texas with route averages of 3-10 Black-chins per year is similar to the area of densest breeding sites on the TBBA map. The distribution map derived from 1994-2003 North American Breeding Bird Survey (BBS) data is similar to the TBBA map except for an area in the northwest corner of the Panhandle. No breeding sites were found east of the 96 th meridian and only 2 north of the 34 th parallel. The densest concentration of breeding sites was found along the boundary between the eastern Rolling Plains, Edwards Plateau and South Texas Brush Country and the western edge of the Post Oak Savannah and Blackland Prairie regions (see the region map in Lockwood and Freeman ). During the 1987-1992 field work seasons of the TBBA project, volunteers found most breeding evidence for Black-chinned Hummingbirds west or just east of the 97 th meridian. Union 1998, Baltosser and Russell 2000, TBBA data).ĭISTRIBUTION. The breeding ranges of these two species overlaps only in Texas between the 96 th and 98 th meridians (Am. colubris) of eastern North America and the northern Great Plains. This species is closely related to the Ruby-throated Hummingbird ( A. Black-chinned Hummingbirds are widespread in the western United States and adjoining southwest Canada and northern Mexico.
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