Little brown bat The little brown bat, Myotis lucifugus, is a species of mouse eared bat found in North America.It has a small body size and glossy brown fur It is similar in appearance to several other mouse eared bats, including the Indiana bat, northern long eared bat, and the Arizona myotis, to which it is closely related. Its mating system is polygynandrous, or promiscuous, and females give birth to one Little Brown Bat Myotis lucifugus NatureWorks The little brown bat has glossy brown fur It has hair on its toes and it has pointed ears It is between three and five inches long and weighs between and an ounce NatureWorks Little Brown Bat Species Profile, Alaska Department of Little brown bats are small, flying, nocturnal mammals Their fur varies in color from cinnamon buff to dark brown on their back, and buffy to pale gray on their underside The hairs on their back have long glossy tips Juveniles are uniformly dark brown in color Little brown bats typically Little Brown Bat Watchable Wildlife NYS Dept of What to Watch for Size Little brown bats have a wingspan of inches and a body length of inches with a inch forearm Appearance They are covered in a coat of silky cinnamon and dark brown hair and pale grey underneath. Bats in Massachusetts Little Brown Bats and Big Brown Bats Two different species of bats reside in Massachusetts Little brown bats and big brown bats Little browns are the migratory species and Big Browns are year round residents Here we will discuss the differences between the species and how to tell them apart. Bat Etymology An older English name for bats is flittermouse, which matches their name in other Germanic languages for example German Fledermaus and Swedish fladdermus , related to the fluttering of wings Middle English had bakke, most likely cognate with Old Swedish natbakka night bat , which may have undergone a shift from k to t to Modern English bat influenced by Latin blatta, moth Little Brown Bat New Jersey, NJ Wildlife and Animal The most common bats involved in nuisance complaints are the little brown bat Myotis lucifugus and the big brown bat Eptesicus fuscus.The little brown bat ranges from . to . inches in length and has a wingspan of . to . inches. Bats Northwest Meet Our Bats Articles about Bats Bat Watching BatCam Pacific Northwest Bat Gallery Each page has the common name, scientific name, a photo and a brief overview of the bat s natural history. Little Brown Bat Bat Facts and Information Little Brown Bat Myotis lucifugus Description The Little Brown Bat is a species that is well known It is very small with an overall body size that is from . inches to inches. Bat Facts Little brown bats can reduce their heart rate to beats per minute and can stop breathing altogether for minutes at a time while hibernating They may hibernate for than seven months if left undisturbed, but can starve if they are awakened too many times during the winter, which causes them to run out of energy reserves before spring.