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Connecticut Warbler makes epic 1600 km non-stop oceanic flight: what this really tells us

A Conneticut Warbler fitted with tiny "backpack" geolocation deivce helps solve migration mystery. (Photo:Emily McKinnon)

The tiny and rare Connecticut Warbler has astounded scientists who, after retrieving geolocators from tagged birds, learned just how incredible the birds' migratory journey really is. The route from the warbler's breeding grounds in North America’s Boreal Forest to its winter range in the western Amazon Basin includes a 1600km (1000 mile) non-stop over-ocean leg! The recently published study involved birds captured and tagged in a remote region of the Boreal in Manitoba and resulted in data retrieval that rivals similar results obtained for the Blackpoll Warbler.