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Mississippi Flyway
The Mississippi Flyway is a bird migration route that generally follows the Mississippi, Missouri, and Lower Ohio Rivers in the United States across the western Great Lakes to the Mackenzie River and Hudson Bay in Canada. The main endpoints of the flyway include central Canada and the region surrounding the Gulf of Mexico. The migration route tends to narrow considerably in the lower Mississippi River valley in the states of Missouri, Arkansas, Mississippi, and Louisiana, which accounts for the high number of bird species found in those areas. Some birds use this flyway to migrate from the Arctic Ocean to Patagonia. Typically birds use this route because no mountains or ridges of hills block the path over its entire extent. Good sources of water, food, and cover exist over its entire length. About 40% of all North American migrating waterfowl and shorebirds use this route. The other primary migration routes for North American birds include the Atlantic, Central and Pacific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a four-chambered heart, and a strong yet lightweight Bird skeleton, skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 Order (biology), orders. More than half are passerine or "perching" birds. Birds have Bird wing, wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the Flightless bird, loss of flight in some birds, including ratites, penguins, and diverse endemism, endemic island species. The digestive and respiratory systems of birds are also uniquely a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Mississippi River National Wildlife And Fish Refuge
The Upper Mississippi River National Wildlife and Fish Refuge is a , See also * Izaak Walton League * List of National Wildlife Refuges *Trempealeau National Wildlife Refuge Trempealeau National Wildlife Refuge is a National Wildlife Refuge located along the Upper Mississippi River in extreme southern Buffalo County, Wisconsin, Buffalo County and extreme southwestern Trempealeau County, Wisconsin, Trempealeau Count ... * Upper Mississippi River Locks and Dams References External links Upper Mississippi River National Wildlife and Fish RefugeFriends of the Refuge Headwaters Friends of the Refuge Mississippi River Pools 7 & 8 Friends of Pool 9Stewards of the Upper Mississippi River Wildlife and Fish RefugeFriends of the Upper Mississippi River RefugeUpper Mississippi River National Wildlife and Fish Refuge: Comprehensive Conservation Plan and Environmental AssessmentUpper Mississippi River National Wildlife and Fish Refuge Habitat Management Plan {{authority contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trempealeau National Wildlife Refuge
Trempealeau National Wildlife Refuge is a National Wildlife Refuge located along the Upper Mississippi River in extreme southern Buffalo County, Wisconsin, Buffalo County and extreme southwestern Trempealeau County, Wisconsin, Trempealeau County in Wisconsin, United States. There are two small private areas in the protected area. It is in part a wetland consisting of backwaters away from the Mississippi and Trempealeau River, and is a significant element of the Mississippi Flyway. It is part of the Driftless Area, a portion of North America which remained free of ice during the last Wisconsin glaciation, ice age, creating in part the deep gorge of the Mississippi, quite visible from this refuge. It is also a sand prairie, including grasses such as big bluestem, indiangrass, and switchgrass capable of growing to in height. There is also bottomland forest in the reserve with river birch, swamp white oak and silver maple. The area is only separated from the Upper Mississippi Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driftless Area
The Driftless Area, also known as Bluff Country and the Paleozoic Plateau, is a topographic and cultural region in the Midwestern United States that comprises southwestern Wisconsin, southeastern Minnesota, northeastern Iowa, and the extreme northwestern corner of Illinois. The Driftless Area is a USDA Level III Ecoregion: Ecoregion 52. The Driftless Area takes up a large portion of the Upper Midwest forest–savanna transition. The western section of the Driftless Area in Minnesota is called the Blufflands, due to the steep bluffs and cliffs around the river valleys. The western half is known as the Rochester Plateau, which is flatter than the Blufflands. The Coulee Region is the southwestern part of the Driftless Area in Wisconsin. It is named for its numerous ravines. Never covered by ice during the last ice age, the area lacks the characteristic glacial deposits known as drift. Its landscape is characterized by steep hills, forested ridges, deeply carved river valleys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Mississippi River
The Upper Mississippi River is the portion of the Mississippi River upstream of St. Louis, Missouri, United States, a city at the confluence of its main tributary, the Missouri River. Historically, it may refer to the area above the Arkansas Post, above the confluence of Ohio River, or above Cape Girardeau. History In terms of geologic and hydrographic history, the Upper Mississippi east and south of Fort Snelling is a portion of the now-extinct Glacial River Warren which carved the valley of the Minnesota River, permitting the immense Glacial Lake Agassiz to join the world's oceans at the Gulf of Mexico. The collapse of ice dams holding back Glacial Lake Duluth and Glacial Lake Grantsburg carved out the Dalles of the St. Croix River at Interstate Park. The Upper Mississippi River valley likely originated as an ice-marginal stream during the Pre-Illinoian Stage. The Driftless Area is a portion of North America left unglaciated at that ice age's height, hence not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Flyway
The Pacific Flyway is a major north-south flyway for migratory birds in the Americas, extending from Alaska to Patagonia. Every year, migratory birds travel some or all of this distance both in spring and in fall, following food sources, heading to breeding grounds, or travelling to overwintering sites. Any given bird species travels roughly the same route every year, at almost the same time. Ornithologists and Birdwatching, birdwatchers can often predict to the day when a particular species will show up in their area. Notable locations Along the Pacific Flyway, there are many key rest stops where birds of many species gather, sometimes in the millions, to feed and regain their strength before continuing. Some species may remain in these rest stops for the entire season, but most stay a few days before moving on. * Boundary Bay, British Columbia, has been listed as an Important Bird Area by the Canadian government in recognition of its value to migratory birds. * Grays Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Flyway
The Central Flyway is a bird migration route that generally follows the Great Plains in the United States and Canada. The main endpoints of the flyway include the Canadian Prairies and the region surrounding the Gulf of Mexico; the migration route tends to narrow considerably in the Platte River and Missouri River valleys of central and eastern Nebraska, which accounts for the high number of bird species found there. Some birds even use this flyway to migrate from the Arctic Ocean to Patagonia. Routes used by birds are typically established because no mountains or large hills block the flyway over its entire extent. Good sources of water, food, and cover exist over its entire length. The other primary migration routes for North American birds includes the Atlantic, Mississippi and Pacific Flyways. The Central Flyway merges with the Mississippi Flyway between Missouri and the Gulf of Mexico. The Central Flyway Council is composed of representatives from agencies responsible for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Flyway
The Atlantic Flyway is a major north-south flyway for migratory birds in North America. The route generally starts in Greenland, then follows the Atlantic coast of Canada, then south down the Atlantic Coast of the United States to the tropical areas of South America and the Caribbean. Every year, migratory birds travel up and down this route following food sources, heading to breeding grounds, or traveling to overwintering sites. This route is used by birds typically because no mountains block most of this path, though birds cross the Appalachian Mountains to join the flyway. Good sources of water, food, and cover exist over its entire length. The warm climates found in the southern portion of the region are home to many northern birds in winter, while in summer the region is home to many bird species from South America. Land located within the Atlantic Flyway is the most densely populated land out of the four major flyways crossing the United States. The journey Ducks and gee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shorebird
245px, A flock of Red_knot.html" ;"title="Dunlins and Red knot">Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflats in order to foraging, forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans. The term "wader" is used in Europe, while "shorebird" is used in North America, where "wader" may be used instead to refer to long-legged wading birds such as storks and herons. There are about 210 species of wader, most of which live in wetland or coastal environments. Many species of Arctic and temperate regions are strongly migratory, but tropical birds are often resident, or move only in response to rainfall patterns. Some of the Arctic species, such as the little stint, are amongst the longest distance migrants, spending the non- breeding season in the southern hemisphere. Many of the smaller species found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfowl
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the order are highly adapted for an aquatic existence at the water surface. With the exception of screamers, males have penises, a trait that has been lost in the Neoaves, the clade consisting of all other modern birds except the galliformes and paleognaths. Due to their aquatic nature, most species are web-footed. Evolution Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside the other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins, the Galliformes. These two groups only occupied two ecological niches during the Mesozoic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patagonia
Patagonia () is a geographical region that includes parts of Argentina and Chile at the southern end of South America. The region includes the southern section of the Andes mountain chain with lakes, fjords, temperate rainforests, and glaciers in the west and Patagonian Desert, deserts, Plateaus, tablelands, and steppes to the east. Patagonia is bounded by the Pacific Ocean on the west, the Atlantic Ocean to the east, and many bodies of water that connect them, such as the Strait of Magellan, the Beagle Channel, and the Drake Passage to the south. The northern limit of the region is not precisely defined; the Colorado River, Argentina, Colorado and Barrancas River, Barrancas rivers, which run from the Andes to the Atlantic, are commonly considered the northern limit of Argentine Patagonia. The archipelago of Tierra del Fuego is sometimes considered part of Patagonia. Most geographers and historians locate the northern limit of Chilean Patagonia at Huincul Fault, in AraucanÃa R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
