Северная грубокрылая ласточка Родовое название северной грубокрылой ласточки - Stelgidopteryx, что означает «крыло-скребок»; название вида, serripennis, означает «пилообразное перо». === 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. The genus name of the Northern Rough-winged Swallow is Stelgidopteryx, which means "scraper wing"; the species name, serripennis, means "saw feather." Swallows are good fliers and that goes double for the Northern Rough-winged Swallow, which unlike most birds also molts some of its feathers while flying. It takes them around 100 days to finish growing new feathers. The oldest recorded Northern Rough-winged Swallow was a male, and at least 5 years, 11 months old when he was recaptured and rereleased in California.