IUCN Conservation Status: Least Concern
A plain brown bird, the Northern Rough-winged Swallow is fairly common across the United States in summer. The species derives its name from the outer wing feathers, which have small hooks or points on their leading edges.
Territorial male gives a series of short, relatively low-pitched, rising "brrt" or "jrrr" notes.
The New Birds of Winter, All About Birds blog, February 5, 2015.