Northern Rough-winged Swallow
Stelgidopteryx serripennis
bird
Eaton, Elon Howard · public domain
70
Detections
Jul 4, 2026
First heard
Aug 11, 2026
Last heard
68%
Avg. confidence
By month
how often, month over month29
Jul '26
41
Aug '26
By time of day
local time · when it's most vocal12a6anoon6p11p