The songs of spring are in the air, as northbound birds grace the skies. The following websites cover various aspects of the amazing and ancient phenomenon of bird migration. Hosted by the U.S. Geological Survey Northern Prairie Wildlife Research Center, the (1) first site is an online publication from the U.S. Fish and Wildlife Service on the Migration of Birds. This publication provides an extensive account of migration including sections on Techniques for Studying Migration, Evolution of Migration, Flight Speed and Rate of Migration, and many more. The (2) second site from birdnature.com is a webpage describing the Flyway Systems of North America accompanied by clearly labeled maps. The (3) third site from the University of Lund, Sweden introduces various research studies in the field of Migration Ecology including research information on Orientation and Navigation, Migration patterns, the Lund Wind Tunnel, and more. The (4) fourth site presents the Canadian Migration Monitoring Network, a standardized effort involving multiple stations in southern Canada and the northern United States to gather baseline data on northern breeding birds. Site visitors can link to information about species population trends, latest sightings, and to sites for any of the 22 stations. Journey North hosts the (5) fifth site, which tracks migrating bald eagles through the spring of 2004, providing migration updates, information about tracking bald eagle migration, and related educational lessons and activities. A National Geographic 2004 feature, Crane Cam is the (6) sixth site providing multimedia shows, a photo gallery, map, and viewings from a live remote camera at Audubon's Rowe Sanctuary. The (7) seventh site features an interactive Migration Game created by the Migratory Bird Center at the Smithsonian National Zoological Park. The (8) final site, from the Whyfiles contains brief sections on various aspects of bird migration such as navigation, flight strategies, raptor migration, and declining numbers of migrating songbirds. This site also links to information about monarch migration.
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