Scott Weidensaul, author of Living on the Wind, says “. . . the longest, most amazing, most awe-inspiring migrations are the ones that are most delicately balanced. And if you perturb any of the supports on which it depends, the whole thing collapses like a house of cards.” Fortunately
At 9,000 feet in the Manzano Range in New Mexico, HawkWatch International counts and bands raptors making their way south along the Rocky Mountain front. Some, like this Swainson's Hawk, fly all the way to the pampas of Argentina.