Their great article and map highlight the work of Dr. Bierregaard, Osprey researcher extraordinaire.
...a three-month-old female Osprey named Penelope pushed off from Martha’s Vineyard, Massachusetts, and flew, alone, 2,700 miles to French Guiana in 13 days.
That, my friends, is why Cornell's article, Backpacking Ospreys, needs to be read. And then Dr. Bierregaard's page needs to be perused. Pure, delicious, researchy goodness.