
Drawing on extensive research and travel to every country within the range of the Gyrfalcon, Eugene Potapov and Richard Sale delineate a new map of the bird's range, conclude that the Gyrfalcon is more adaptable than previously thought, and restore the traditional Linnean scientific name of the species, "Falco gyrfalco. "The authors also reveal that Gyrfalcons, for much of their lives, are true stenophagous raptors, a rarity not only among raptors but among all birds.
Elegantly illustrated with many photographs and line drawings, this is an essential volume for ornithologists, ecologists, wildlife rehabilitators, falconers, and all others fascinated by birds of prey.
| mark whitehorn m hamer jeffrey sachs napoleon hill victoria albert museum | h irving hancock greg rucka usha kr bin he nicole jordan |