When a peregrine falcon crashed through the skylight of a high-rise building in Lima, Peru, what impressed falcon researchers was not its tremendous speed (peregrines are the fastest animal in the world), or that it was found eating a dove in a busy stairwell. But rather, they were impressed by its long, long journey. A recently published study in the Journal of Raptor Research links the breeding sites of the North American subspecies of peregrine falcons (Falco peregrinus) from their breeding and natal (birth) grounds in Canada and the U.S. to their wintering sites in Peru. Using 57 years of data from 227 North American peregrines, including eight tagged birds with known natal locations, this research adds to what is known about the range of their wintering sites as well as the different migration patterns of male and female peregrines. A North American peregrine falcon with bands on its legs. These tags are used to identify individual birds for science and conservation. Photo by Miguel Moran. Based on the plastic tag on its leg, placed as part of a program under the U.S. Geological Survey’s Bird Banding Laboratory, the team knew that the bird found in the stairwell hatched in Canada’s Hudson Bay and traveled 8,870 kilometers (5,511 miles) during its winter migration to the Peruvian capital. The farthest-flying peregrine recorded in the study had migrated from Alaska to Peru — a distance of 10,671 km (6630 mi)! “Not until these findings were published was it known that significant numbers…This article was originally published on Mongabay Läs mer