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Fåglar (ornitologi)
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The Northern Spotted Owl, a threatened species that occurs in coniferous forests in the western United States, has become a well-known environmental symbol. But how is the owl …
The Salton Sea, California's largest inland lake, supports a spectacular bird population that is among the most concentrated and most diverse in the world. Sadly, this crucial …
In a comprehensive investigation of macrogeographic variation in the Plain Titmouse (Parus inornatus) complex in western North America, the author assessed population-level …
Declining bird populations, especially those that breed in North American grasslands, have stimulated extensive research on factors that affect nest failure and reduced …
In almost every location and every season, California is a birdwatchers' paradise. One can search Sierra meadows for a Great Gray Owl, the autumn estuary for a Black-bellied …
Parrots of the Wildis an exhaustive compendium of information about parrots, from their evolutionary history to their behavior to present-day conservation issues. A must-have for …
Reaching from interior Alaska across Canada to Labrador and Newfoundland, North America's boreal forest is the largest wilderness area left on the planet. It is critical habitat …
This study of mesozoic birds covers a wide range of topics, including discussions of avian origins, the fossil record of feathers and footprints, bone histology, and locomotor …
Admired for its elaborate breeding displays and treasured as a game bird, the Greater Sage-Grouse is a charismatic symbol of the broad open spaces in western North America. …
Most owls are almost perfectly adapted to life in the dark. Their vaguely humanoid faces reflect the spectacular evolution of their hearing and vision, which has made flight, …