Squinting through my binoculars, I scanned the dense branches of a black spruce, trying my best to catch a glimpse of the ...
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Researchers give warblers tiny backpacks to learn more about bird migration
The devices are light enough to be carried by small migratory songbirds, which often weigh less than a spoonful of sugar.
Pictured: Richard's pipits (Anthus richardi) are migrating on an east to west axis instead of heading south towards warmer latitudes. JJ Harrison via Wikimedia Commons under CC BY 3.0 Each year birds ...
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