Blackpoll warbler fitted with a miniaturized light-sensing geolocator on its back that enabled researchers to track their exact migration routes from eastern Canada and New England south toward wintering grounds. Credit: Vermont Center for Ecostudies
Posted: 31 Mar 2015 06:58 PM PDT
For the first time biologists report ‘irrefutable evidence’ that tiny blackpoll warblers complete a nonstop flight from about 1,410 to 1,721 miles (2,270 to 2,770 km) in just two to three days. For this work the scientists fitted geolocator packs on 20 birds in Vermont and 20 more in Nova Scotia. They were able to recapture three birds from the Vermont group and two from the Nova Scotia group for analyses….