Northern Rough-winged Swallow (Stelgidopteryx serripennis}
The Northern Rough-winged Swallow (Stelgidopteryx serripennis) gets its common name for the serrated edges of the wing's primary feathers, but this can only be observed with the bird in hand. It's a relatively small swallow at about 13.5 cm (5.3 inches) in length. The Northern Rough-winged Swallow breeds throughout the US and southern Canada. They winter in Mexico and Central America.
Northern Rough-winged Swallow (Stelgidopteryx serripennis}
The Northern Rough-winged Swallow (Stelgidopteryx serripennis) gets its common name for the serrated edges of the wing's primary feathers, but this can only be observed with the bird in hand. It's a relatively small swallow at about 13.5 cm (5.3 inches) in length. The Northern Rough-winged Swallow breeds throughout the US and southern Canada. They winter in Mexico and Central America.