Mammals of Wisconsin; Print Mammals of Wisconsin Mammals found in the state of Wisconsin. Such is the insect-hunting prowess of the bats that they are thought to save farmers billions of dollars in crop losses, according to Sheryl L. Ducummon, with Bat Conservation International. A single little brown bat can catch 600 mosquitoes in just one hour. Professional Little Brown Bat Control. Four hibernating bats in Wisconsin are affected by white-nose, including little brown, big brown, tricolor and Northern long-eared. Bats in Wisconsin. One popular hibernation spot in Wisconsin is Neda Mine, an abandoned iron mine located in Dodge County. The most common bat in Wisconsin is the little brown bat. Bats are grouped into the order Chiroptera, which means “hand wing.” This phrase refers to the fact that the wings of all bats are made up of a thin membrane stretched over elongated finger bones. Four species are known as the cave bats and hibernate in caves and mines throughout the winter. Lasionycteris noctivagans. The span of their wings when outstretched can be up to 11 inches. Little Brown Bat. At 2 ½” to 3 ½” long (thumb-sized), with a wingspread of 8 ½” to 10,” and weighing in at less than a half-ounce (females are a bit larger than males), it is Wisconsin’s second-smallest bat. Lasiurus borealis. Myotis lucifugus has been known to roost in attics of peoples’ houses and take up residence in barns and sheds. Frequently found in tree The little brown bat varies in color from brown, reddish, to golden, although some albino specimens have been observed. Myotis lucifugus. Big Brown Bat 24. They will weigh about 0.25-0.35 ounces with the females slightly heavier than the males. They also weigh no more than half an ounce. Little brown bats play a significant role in the local ecosystem, controlling populations of insects. Eastern Red Bat 25. It is very small with an overall body size that is from 2.5 inches to 4 inches. The Little brown bat is widespread across its range, but the overall number of their population is currently unknown. Little brown bats can be found with a wide range of colors from almost black to a pale brown-gray. One female little brown bat - with a body less than the length of your thumb - can eat its body weight in insects in one evening, Redell said. The cave bats are all susceptible to the devastating bat disease white-nose syndrome. If the Little Brown bat has been found inside human-inhabited structures it should be removed immediately. Myotis septentrionalis. Female little brown bats will establish a maternity colony commonly in attics where it is warm. It's home to the largest hibernating bat population in the Midwest. "Traditionally or historically, we've had about 143,000 bats that hibernate there, and most of them are little brown … Little Brown Bat (Myotis lucifugus) This species is the most common Myotis species in the northern two-thirds of the United States. Here's the rundown. The disease has severely affected this species in Wisconsin, but some populations along the Mississippi and Wisconsin rivers have so far proven more resilient. The little brown bat (Myotis lucifugus) comes by its name honestly. On the IUCN Red List, the Little brown bat is classified as Least Concern (LC) with a stable population trend. A little brown bat is identified with white-nose syndrome in a New York cave in 2008. All 66; Tags; ... Little Brown Bat 21. Wisconsin Bats Wisconsin has seven species of bats. Ecological niche. The Little Brown Bat is a species that is well known. Because the location and elimination of the roost is not as easy as it sounds, a professional should aid in this process. Little Brown Bat – Myotis lucifugus Description. Eptesicus fuscus. Silver-haired Bat 26. Wisconsin has eight species of bats, all of which are insectivorous and use echolocation to navigate and capture prey. ... Northern Myotis 23. Tricolored Bat 22. This bat is about 3-3.5 inches long with a wingspan of 8.5-10.5 inches. The little brown bat is distributed state wide in Wisconsin however it is less common in urban areas.