Blackpoll warblers (Setophaga striata) that breed in western North America migrate up to 12,400 miles (20,000 km) roundtrip each year, some crossing the entire North American continent before making a nonstop trans-ocean flight of up to four days to South America. A new study, published in the journal Ecology, confirms the epic migration journey that … Continue reading Blackpoll Warblers Migrate Up To 12,400 Miles Roundtrip Every Year