Birds of Kentucky: Northern Rough-winged Swallow
2020-05-22 - Shelbyville, KY - Photo by Pen
According to the All About Birds entry for Stelgidopteryx serripennis, "The Northern Rough-winged Swallow gets its name from minuscule hooks on the leading edge of their primary feathers. Running a finger along the edge of the feather from base to the tip feels like touching a rough file." Comments | Permalink
2020-05-22 - Shelbyville, KY - Photo by Pen
According to the All About Birds entry for Stelgidopteryx serripennis, "The Northern Rough-winged Swallow gets its name from minuscule hooks on the leading edge of their primary feathers. Running a finger along the edge of the feather from base to the tip feels like touching a rough file." Comments | Permalink