Researchers now know that this spring, a 6-ounce Red Knot (Calidris canutus)—a shorebird only two-thirds the size of a city pigeon—flew non-stop for six days and nights, covering 5,000 miles (8,000 kilometers) across the Amazon and the Atlantic Ocean between southern Brazil and North Carolina, shattering the previous known Red Knot record by nearly 700 miles. In late August 2009, the same Red Knot flew non-stop for eight days between Canada’s Hudson Bay and the Caribbean, a distance of 3,167 miles (5,100 kilometers).