All birds are making the calculations to breed in beneficial environments and overwinter tend to navigate to resource-rich nonbreeding climates. In North America roughly 350 species reach southern locations winging through four main flyways: Atlantic, Mississippi, Central and Pacific. These zones" roughly correlate with U.S. time zones going east to west.

Waterfowl, cranes, sparrows and others may stop in the United States, while many warblers and shorebirds will often continue into the Caribbean, Central and South America and beyond. Taking flight from the Arctic Refuge in Alaska, the Northern Wheatear (a small songbird), has the longest known avian migration distance at a whopping 13,000 miles one way to its winter home in Africa.

The Arctic Tern, another long-distance traveler, breeds in the upper reaches of the North American continent and flies 12,500 miles one way to the continent of Antarctica for winter and returns north again in the spring. The Bar-tailed Godwit, a wading shorebird, makes an epic journey of 7,000 miles from Alaska across the Pacific Ocean to New Zealand in approximately eight continuous days without stopping! And our familiar Ruby-throated Hummingbird, weighing less than a nickel, can fly over 600 miles of open water in the Caribbean during migration.

More Info: www.terminix.com