Hawks at a Distance by Jerry Liguori

This is the definitive guide to in-flight raptor identification. Whether you're keeping your eyes peeled for raptors during migration season or looking to sharpen your skills for everyday raptor flyovers, this guide will demystify the challenge of identifying birds at a distance. With brief, but detailed descriptions, and countless photos of raptors from every imaginable angle, in all plumages, and with variable light, hawkwatching with this guide in hand will become a true joy.  

Paperback, 208 pages, Princeton University Press, 8 ½” x 6 ¼”