Whether soaring or perched, diurnal birds of prey often present challenging identification problems for the bird enthusiast. Variable plumage, color morphs, and unique individual characteristics are just some of the factors bird watchers must consider when identifying the different species. In this authoritative reference, two of the world's top experts on raptors provide an essential guide to the variations in the species, allowing for easier recognition of key identification points. All the distinguishing marks described have been exhaustively tested in a wide range of field conditions by the authors as well as the colleagues and students who have learned from them.

Key Features:

• The only complete photographic guide to North American diurnal birds of prey
• Includes all species, common and rare
• Written by well-known experts
• Contains 365 photographs, each with an explanatory caption and supporting text describing all 43 species of diurnal raptors found in North America
• Features 14 discussions of specific problems in practical identification
• Complete set showing every plumage
• Raptor I.D. problem section showing similar species side by side

Species List:

Turkey Vulture. Black Vulture. California Condor. Osprey. Hook-billed Kite. Swallow-tailed Kite. White-tailed Kite. Snail Kite. Mississippi Kite. Bald Eagle. Northern Harrier. Sharp-shinned Hawk. Cooper's Hawk. Northern Goshawk. Common Black Hawk. Harris' Hawk. Gray Hawk. Red-shouldered Hawk. Broad-winged Hawk. Short-tailed Hawk. Swainson's Hawk. White-tailed Hawk. Zone-tailed Hawk. Red-tailed Hawk. Ferruginous Hawk. Rough-legged Hawk. Golden Eagle. Crested Caracara. American Kestrel. Merlin. Aplomado Falcon. Gyrfalcon. Peregrine. Prairie Falcon. Crane Hawk. Roadside Hawk. Hawaiian Hawk. Red-backed Hawk. Steller's Sea Eagle. White-tailed Eagle. Collared Forest Falcon. Northern Hobby. Common Kestrel.

The Oxford Handbook of Economic Geography is the single most important statement of the scope and status of the vibrant interdisciplinary field of economic geography. It brings together more than 40 leading economists and geographers from around the world. From general statements about the history and evolution of the field to statements about the crucial problems of economic geography, the volume is preoccupied with the rival theories and perspectives that have sustained its recent growth. The volume is also focused upon linkages, including those between the global and the local, between industry location and trade, and between corporate strategy and market structure.

In questo volume vengono illustrati e descritti grandi aquile e avvoltoi, falchi, nibbi, albanelle e tutte le specie di rapaci diurni che si possono osservare in italia e nei continenti vicini. Per permettere agli studiosi l'individuazione in natura dei rapaci, la guida offre, oltre a dettagliati disegni a colori, anche foto e accurate descrizioni. Di ogni specie sono illustrati tutti i piumaggi dei due sessi degli adulti, gli stadi giovanili e, quando presenti, anche le variazioni melaniche.

The photos and drawings of Wheeler and photos and detailed text of Clark are combined in a well-organized and comprehensive guide bound in a water-resistant small format ideal for a birder's pocket. Vagrants as well as resident birds are described, with distribution maps provided for all. A list of similar species and description of the bird's flight, behavior, status and distribution, fine points, and subspecies are provided along with the initial description of each bird. Annotation c. Book News, Inc., Portland, OR (booknews.com)