Hawks in flight: the flight identification of North American migrant raptors.
Boston: Houghton Mifflin, 1988. Octavo, photographs, a fine copy in dustwrapper. More
Boston: Houghton Mifflin, 1988. Octavo, photographs, a fine copy in dustwrapper. More
New York: Houghton Mifflin, (2012. second edition). Octavo, dustwrapper, colour photographs, black and white illustrations. Hawks can be some of the hardest birds to identify, most often seen flying high above and at a distance. In the first edition of this guide, Pete Dunne, David Sibley, and Clay Sutton presented..... More
Princeton: Princeton University Press, 2011. Octavo, paperback, photographs. Focuses on distant raptors as they are truly seen in the field. Liguori, a leading expert on North American raptors, factors in new information and approaches for identifying twenty-nine species of raptor in various lighting situations and settings. The field guide's nineteen..... More
Princeton: Princeton University Press, 2011. Octavo, dustwrapper, colour photographs, other illustrations. Focuses on distant raptors as they are truly seen in the field. Liguori, a leading expert on North American raptors, factors in new information and approaches for identifying twenty-nine species of raptor in various lighting situations and settings. The..... More