The Great-tailed Grackle breeds from Mexico and the Gulf Coast of Texas north to central California, central Nevada, Utah, Colorado, Kansas, and Iowa (Sibley 2014). This species is a year-round resident throughout the southern portion of its range (Sibley 2014). In Montana, the Great-tailed Grackle has only a few observations, including three records with direct evidence of breeding in Dillon in 2014, 2015, and 2016, and a single record with indirect evidence of breeding at Bowdoin National Wildlife Refuge in 1996 (Marks et al. 2016, Montana Bird Distribution Committee 2012).
For a comprehensive review of the conservation status, habitat use, and ecology of this and other Montana bird species, please see Marks et al. 2016, Birds of Montana.
Direct Evidence of Breeding
Indirect Evidence of Breeding