Owls of old forests of the world
U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1995 - Nature - 64 pages
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aluco associated with old Bay Owl Biology and conservation birds Black-and-White Owl Brown Wood Owl Bubo calls include Ciccaba Clark cloud forests conifer forests conservation of northern Department of Agriculture evergreen forest February 3-7 Fish Owl Flammulated Owl Forest Eagle-Owl forest habitats forest owls Forest Service Fulvous Owl genus Gray Owl habitat habitat associations Hawk Owl Hilty and Brown Himalayan Wood Owl hoot Hume and Boyer island lndia Malay Wood Owl Mikkola Mottled Owl Mottled Wood Owl Neotropical northern forest owls Northern Spotted Owl old forests old-forest owls Owl occurs Owl Otus owl species Owl Strix Owlet Owls of Old personal observation pine Pygmy-Owl Ripley Rocky Mountain Forest Scops Owl Screech Owl Scully's Wood Owl South America Southeast Asia Spotted Wood Owl Stiles and Skutch subspecies subtropical Tawny Owl temperate trees tropical forests tropical rain forests U.S. Department undisturbed forests Ural Owls vocalizations Voous western wildlife woodland