Скачать с ютуб American Red Squirrel facts 🐿 Pine Squirrel 🐿 North American Red Squirrel 🐿 Chickaree 🤩 в хорошем качестве

American Red Squirrel facts 🐿 Pine Squirrel 🐿 North American Red Squirrel 🐿 Chickaree 🤩

#animaldocumentary American red squirrel documentary The American red squirrel is one of three species of tree squirrels currently classified in the genus Tamiasciurus, known as the pine squirrels. The American red squirrel is variously known as the pine squirrel, North American red squirrel and chickaree. It is also referred to as Hudson's Bay squirrel, as in John James Audubon's work The Viviparous Quadrupeds of North America. The squirrel is a small, diurnal mammal that defends a year-round exclusive territory. It feeds primarily on the seeds of conifer cones, and is widely distributed across North America wherever conifers are common, except on the Pacific coast, where its cousin, the Douglas squirrel, is found instead. Red squirrels can be easily distinguished from other North American tree squirrels by their smaller size, territorial behavior, and reddish fur with a white venter. Red squirrels are somewhat larger than chipmunks. The Douglas squirrel is morphologically similar to the American red squirrels, but has a rust-colored venter and is restricted to the southwestern coast of British Columbia and in the Pacific Northwest of the United States. The ranges of the American red squirrel and the Douglas squirrel overlap in southern British Columbia, northwestern Washington and eastern Oregon. American red squirrels are widely distributed across the North American continent. Their range includes: most of Canada, excluding northern areas with no tree cover, the southern half of Alberta and the southwestern coast of British Columbia; the southern half of Alaska; the Rocky Mountains area of the United States, and northern half of the eastern United States. American red squirrels are abundant and not of conservation concern throughout much of their range. Despite the map of the range suggesting that American red squirrels are not on the island of Newfoundland, squirrels were introduced and have lived there in abundance for decades. However, an isolated population of red squirrels in Arizona has experienced considerable declines in population size. In 19 87, this portion of the population was listed as an endangered species. American red squirrels are primarily granivores, but incorporate other food items into their diets opportunistically. In Yukon, extensive behavioral observations suggest white spruce seeds comprise over 50% of a red squirrel's diet, but squirrels have also been observed eating spruce buds and needles, mushrooms, willow leaves, poplar buds and catkins, bearberry flowers and berries, and animal material such as bird eggs or even snowshoe hare leverets. White spruce cones mature in late July and are harvested by red squirrels in August and September. These harvested cones are stored in a central cache and provide energy and nutrients for survival over the winter and reproduction the following spring. The fallen scales from consumed seed cones can collect in piles, called middens, up to twelve meters across. White spruce exhibits two- to six-year masting cycles, where a year of superabundant cone production is followed by several years in which few cones are produced. American red squirrel territories may contain one or several middens. Gestation has been reported to range from 31 to 35 days. Females can breed for the first time at one year of age, but some females delay breeding until two years of age or older. Most females produce one litter per year, but in some years reproduction is skipped, while in other years some females breed twice. Litter sizes typically range from one to five, but most litters contain three or four offspring. Offspring are pink and hairless at birth. They first emerge from their natal nests at around 42 days, but continue to nurse until approximately 70 days. Nests are most commonly constructed of grass in the branches of trees. Nests are also excavated from witches' broom – abnormally dense vegetative growth resulting from a rust disease – or cavities in the trunks of spruce, poplar, and walnut trees. American red squirrels rarely nest below ground. Each individual squirrel has several nests within its territory, and females with young move them between nests. Some behavior has been reported within human dwellings using insulation as nesting fodder.