telegraph.co.uk A diminutive songbird weighing the equivalent of just three teaspoons of sugar can fly over the north Atlantic, scientists have said, resolving a 50-year mystery.
Blackpoll warbler songbird, which weighs 4.2 ounces, can fly 1700 miles non-stop from New England to South America Tipping the scale at a mere 4.2 ounces (12 grammes), the white-throated, black-capped blackpoll warbler (Setophaga striata) migrates each autumn from New England to South America.
For half a century, scientists have debated whether the birds fly non-stop over the ocean or take breaks on land to carry out this marathon flight.
Backpack flight recorders, attached to 40 of the birds, have now provided "irrefutable evidence" that they do it all in one go, the scientists reported in the journal Biology Letters...
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