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hoary bat size

Migrating mainland hoary bats blown off course by prevailing winds flew 2,200 miles from California. In North America, few bat species are more widespread than the hoary. … The hoary bat is a reclusive bat by nature preferring to be alone most of its life except during mating and in the fall when they may migrate in groups. Due to its large size and dense fur coat, the hoary bat is also the most hardy, hunting when the thermometer drops to as low as 32 degrees (a temperature that puts most other bat species into a stupor). They are protective of their foraging areas and may drive other bats away. It is also one of the largest bats in North America with a weight of about one ounce and a wingspan of 13 to 16 inches. “delayed fertilization.” After mating in early autumn, the female stores the male’s sperm through winter hibernation until spring, when she ovulates and the eggs are fertilized. Click to view a larger version. Yellow bats lack the distinctive white markings on shoulders and wrists. Its coat is dense and dark brown, with white tips to the hairs that give the species its 'hoary' appearance for which it is named. Wisconsin Department of Natural Resources  |  101 S. Webster Street . Males and females are dimorphic in body mass, with females 40% heavier than males. State Distribution: Hoary bats are found throughout the state in favorable habitats from May through September, though they appear to be more common in the northern part of the state. Identification: The hoary bat is Wisconsin's largest bat. The hoary bat averages 13 to 14.5 cm (5.1 to 5.7 in) long with a 40 cm (15.5 in) wingspan and a weight of 26 g (0.92 oz). The fur is a mixture of yellowish-brown, dark brown, and white, giving it a distinctive frosty or “hoary” appearance. The wingspan is 43 cm. The Red, and the Hoary Bat, three or four inches lon

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