It is found as far west as eastern Texas and as far south as Florida. Maternity Season: Earlier: late April until mid-July Biology: .46 oz, 10.5-inch wingspan, free tail. used loosely to describe any group of organisms living together or in close proximity to each other - for example nesting shorebirds that live in large colonies. Only a single colony of evening bats (Nycticeius humeralis) is known to occur in Michigan, and it is the northernmost colony on the North American continent. They often share roosts with Brazilian free-tailed bats and southeastern myotis. Accessed Choose your state below to see which bats live in your area. Nancy Shefferly (editor), Animal Diversity Web. The Evening Bat leaves northern parts of its range in winter, suggesting a fall migration to southern states. In mid-May, only female evening bats migrate to Michigan to raise their pups, and in late August, evening bats migrate to southern portions of their range, where they are ubiquitous. By reducing the numbers of these pests, evening bats may increase the yield of the harvest. There are more than 45 different bat species (and even more sub-species) in the United States. that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle). If a solitary bat is unsuccessful, it will follow a group of bats to the food source. Melissa Neely (author), University of Wisconsin-Stevens Point, Chris Yahnke (editor), University of Wisconsin-Stevens Point. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. activities also have resulted in a loss of prime roosting trees in some Mammals of Kentucky. a significant decrease in prime roosting and foraging habitat. The east­ern end of its range is in Vir­ginia and North Car­olina. There has been one record of evening bats in On­tario and three from south­ern Michi­gan (Kurta, 2001). Their flight is slow and steady. Key Behaviors; motile; Communication and Perception. (Kunz, 1999; Kurta, 2001; Watkins, et al., 1972). The male pups leave the roost after six weeks, but the females remain in the colony. Evening bats form small colonies, or groups, that range from a few to as many as 100 individuals. For foraging habitat, evening bats in Georgia prefer pine forest, riparian zones, and open fields. The fungus grows on, and in some cases invades, the bodies of hibernating bats and seems to result in disturbance from hibernation, causing a debilitating loss of important metabolic resources and mass deaths. This species may be confused with Myotis species, though the curved tragus of the evening bat can differentiate the two genera. However, breeding evening bats have been found as far north as Michigan and as far west as the 100th meridian. Texas Tech University, Max Planck Institute for Demographic Research, causes or carries domestic animal disease, National Park Service, Wildlife Health Center, 2010,, © 2020 Regents of the University of Michigan. gather into maternity They also both form maternal colonies and like to hang out in caves or trees. In mid-May, only female evening bats migrate to Michigan to raise their pups, and in late August, evening bats migrate to southern portions of their range, where they are ubiquitous. Not really that common, but I put it here, since I deal with them in Florida. In autumn, evening bats in their northern range will migrate south to warmer climates. young are born in a relatively underdeveloped state; they are unable to feed or care for themselves or locomote independently for a period of time after birth/hatching. Common name: Northern yellow bat Scientific name : Lasiurus intermedius Family: Vespertilionidae Description: The northern yellow bat is one of Florida's larger bat … Because the evening bat is not found in the northe… Evening Bat Range: Mostly SE US. Synapomorphy of the Bilateria. Nowak, R. 1999. Munzer, Olivia Maya, "Ecology of the evening bat (nycticeius humeralis) at the northern edge of the range" (2008). They roost behind loose bark and the crevices and cavities of dead trees. in a variety of semi-open habitats from wetlands and stream corridors to Range. It ranges along the Atlantic seaboard south throughout Florida to Veracruz, Mexico. Females are larger than males. “The evening bat’s historic range is limited to central Iowa. There are even a few records of them roosting under bridges. Kurta, A. with a wingspan of nearly 11 inches (280 mm). Usually smaller colonies. Fun facts: The Malayan Flying Fox is the world’s largest bat by wingspan (Acerodon jubatus is heavier).They have a gestation period of approximately 180 days and give birth to a single pup (twins on rare occasions). This is the largest litter in relation to maternal size of all bats, and one of the largest for any mammal (Kurta, 2001). The pups are weaned 6 to 9 weeks after birth. Usually smaller colonies. Watkins, L., K. Jones, H. Genoways. They prey upon a great variety of flying Ann Arbor, Michigan: The University of Michigan Press. (Barbour and Davis, 1974; Kurta, 2001; Nowak, 1999), Young are born naked and blind. 2001. Evening bats can also be confused with Eptesicus fuscus , although E. fuscus is larger (39 to 54 mm forearm) and has a keel on the calcar (Barbour and Davis, 1974) while Nycticeius humeralis has no keel. reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female. They also do not reach a weight of more than 14 grams. a substantial delay (longer than the minimum time required for sperm to travel to the egg) takes place between copulation and fertilization, used to describe female sperm storage. Measurements of this bat are as follows: Weight ranges from 6 to 14 g; the body is 86 to 105 mm long; the tail is 33 to 42 mm long; wingspan ranges from 260 to 280 mm; the hind foot is 8 to 10 mm in length; ear height is 11 to 15 mm; forearm length is 34 to 38 mm. Evening Bat Range: Mostly SE US. Little brown bats also live in high-elevation forests in Mexico. The size of the feet and the length of the toe hairs are characteristics used to differentiate the Indiana bat from other bats. bat, with glossy brown fur and blackish face, wings and feet. Removal Notes: Sometimes mixed in with Free-tailed bats. 5. 166. the Florida Keys. to north-central Iowa, southeastern Nebraska, central Kansas, Oklahoma According to the scientific literature, females form maternity roosts throughout the range of the species, and the females and young are known to fly south for the winter. The evening bat is an abundant bat throughout the southeastern United States, northward to the upper Midwest and Ontario. Because colonies of evening bats can consume so many insects, it is likely that they play an important role in regulating insect populations. Insectivorous. The evening bat is the second most common species in Florida to inhabit bat houses, following the Brazilian free-tailed bat. Referring to an animal that lives in trees; tree-climbing. IUCN Red List status: Near Threatened (click for more info) Wingspan: 4-6’ Weight: 2-5lbs. The evening bat is dark brown, except for its black ears. at A medium-sized, dull gray bat. Specific anti-predator adaptations in have not been described. Kentucky: The University Press of Kentucky. Cryan, P. 2010. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Range: The evening bat occurs locally throughout the eastern United States from central Pennsylvania and the southern Great Lakes, west to north-central Iowa, southeastern Nebraska, central Kansas, Oklahoma and Texas; it is much more widespread and common in the southern part of that range. mature spermatozoa are stored by females following copulation. Convergent in birds. having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Evening Bat. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. Interestingly, males do not follow females to their northern maternity colonies in the spring, but stay in the southern portion of the range throughout the year. Range number of offspring 1 to 1; Behavior.