From Alaska to Omaha, Then on to Brazil
Blackpoll Warblers make one of the longest migrations taken by a songbird in the world. Blackpoll Warblers that breed in Alaska fly southeast in the fall, appearing throughout the Midwest and eastern U.S. on their way to the Atlantic Coast. Then, they make a nonstop flight over the water to reach South America. Scientists uncovered the stranger-than-fiction details of Blackpoll Warbler migration thanks to a tool called a light-level geolocator, which uses day length to figure out where a bird traveled.
More info and transcript at BirdNote.org.
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