The Lesser Black-backed Gull is a rare winter visitor to North America from Europe (Sibley 2014). In Montana, all records for this species have occurred over the past 10 years (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