Status: Table 1 summarizes the current status of this species or subspecies by various ranking entity and defines the meaning of the status. Detail information about Townsends bats. BLM Special Status Animal Species by Field Office FIELD OFFICE SCIENTIFIC NAMECOMMON NAME FEDERAL STATUS STATE STATUS BLM STATUS OTHER STATUS Alturas 24 Species ... Townsend's big-eared bat Corynorhinus townsendii BLMS SSC Western mastiff-bat Eumops perotis californicus BLMS SSC Yuma myotis Myotis yumanensis BLMS The Ozark big-eared bat (Plecotus townsendii ingens) found only in Arkansas, and the Virginia Big-eared bat (Corynorhinus townsendii virginianus) found in Kentucky, eastern West Virginia, southwestern Virginia, and northwestern North Carolina. Abstract. Keen’s Myotis), that may be mistaken for C. townsendii (especially in flight). Darling, ed. We documented 11 caves used by maternity colonies of Townsend's big-eared bats (Corynorhinus townsendii), and 10 caves that were potentially used by maternity colonies. 2003). Identifying Characteristics: The clove-brown species of bat is distinguished by its extremely large ears, which are joined across the forehead. Title Townsend's Big-eared Bat Range - CWHR M037 [ds902] Publication date 2016-02-0100:00:00 Presentation formats digital map FGDC geospatial presentation format vector digital data Other citation details These are the same layers as appear in the CWHR System software. Townsend’s Big-eared Bat (Corynorhinus townsendii): A Technical Conservation Assessment Prepared for the USDA Forest Service, Rocky Mountain Region, Species Conservation Project October 25, 2006 Jeffery C. Gruver1 and Douglas A. Keinath2 with life cycle model by Dave McDonald3 and Takeshi Ise3 Their fur is pale gray or brown above and buff colored on the underside. Individuals are known to live for 254 months and can grow to 10.3 g. Reproduction is viviparous and dioecious. The sound waves bounce off objects and return to the bat’s ears. State Status: Candidate Federal Status: Species of Concern Recovery Plans: None Townsend’s big-eared bat is a medium-sized insectivorous bat with very large ears connected at the base and two prominent lumps on either side of the nostrils (Nagorsen and Brigham 1993, Gruver and Keinath 2006). Description: Townsend’s Big-eared Bat can be distinguished from all other vesper bats by the presence of prominent, bilateral nose lumps (glands) and outlandishly large ears. Two subspecies of Townsend's big-eared bat are listed as endangered. Corynorhinus townsendii. 1969, Swenson and Shanks 1979, Hendricks 2000, Hendricks et al. The bat's sensitive hearing picks up the echo. Townsend's Big-Eared Bat (Plecotus townsendii) in the East Kootenays. This is the status below threatened. Size, composition, and distance of each object can be assessed with incredible accuracy through the use of this echolocation technique. Prior to 1992, Townsends Big-eared Bat was included in the genus Plecotus. Townsend’s Big-eared Bat (Corynorhinus Townsendii) Also known as the lump-nosed bat, the western big-eared bat, and the long-eared bat, the Ozark big-eared bat is born with its long ears draped over its eye for the first few days. Corynorhinus townsendii (pallescens) Entity Status Status Definition . Considered Sensitive by the U.S. Forest Service. Conf. Townsend's big-eared bat (Corynorhinus townsendii) is a species of conservation concern that may be impacted by ongoing mine reclamation and renewed mineral extraction. Firman, M.C. Townsend's Big Eared Bat relies on flight to move around. 2000.Proc. They often catch their prey in the air near the foliage of trees and shrubs. The Townsend's big-eared bat is a brown bat that is nearly completely uniform in color across its body. A Townsend's Big-eared Bat's average lifespan is 16 years; bats may live up to 30 years. BC Ministry of Environment Status: Blue List. It is a state species of concern in many western states. Caves were the most frequently used type of roost (84.6%), 21.2% of abandoned mines were used as day roosts, and … Townsend's Big-Eared Bat feeds on various nocturnal flying insects, but mainly small moths. It is listed as a Species of Special Concern by Texas Parks and Wildlife, the Department of Fish and Game in California, and is considered a Species of Special Concern due to declining populations and limited distribution in Utah. Its fur ranges from pale to dark brown. Candidate status provides immediate protection to the bat, which occurs across much of the state but is widely threatened by human disturbance and habitat destruction. Spotted Bat is readily identified by its distinctive The Townsend's Big-Eared Bat is a medium-sized bat with extremely long, flexible ears (hence the name) and small yet noticeable lumps on each side of the snout.Its upperparts are similar to dark brown on the back, and wood-brown on the sides. The diet of the Townsend’s Big-eared Bat consists of small moths, flies, beetles, lacewings and sawflies5. This status means that this species is of special concern in BC. (Pale) Townsend’s big-eared bat (Corynorhinus townsendii (pallescens)) 2. 2000. Breeding After a gestation period of 50 - 60 days, 1 young bat is born in mid June. We surveyed abandoned mines, caves, and bridges to identify habitat preferences of day-roosting Townsend's big-eared bat (Corynorhinus townsendii) in northern Utah.Of 820 sites surveyed (676 mines, 39 caves, and 105 bridges), 196 (23.9%) were occupied by C. townsendii. This is the status below threatened. Townsend's big-eared bats are also versatile flyers, exhibiting movement ranging from darting to hovering motions. The ears may reach a length of 38 mm and when laid back they extend to the middle of the bat’s body. They roost in caves, old mines, old buildings and under cliffs. It is an invertivore. They are an average of 98mm in length an weigh around 7-12 grams. Fun Facts: Their ears are almost half their body length and join at their forehead; Highly maneuverable flyer; capable of flying at slow hovering speeds. 2000, Hendricks and Kampwerth 2001), but movements of individuals between active season roosts and hibernacula have not been reported or studied. This bat's ears are enormous, reaching a length of 38 mm. Scientific Name: Corynorhinus townsendii Description: The most distinctive feature of the Townsend's Big-Eared Bat (Corynorhinus townsendii) is it large ears, which are more than 2.5 cm in length. Distribution The western range of Townsend’s big-eared bat extends from the Pacific Ocean eastward to the western-most Great Plains states, and from central Mexico northward … Townsend's big-eared bat lives in the drier conifer-aspen forests of the west. Females are usually larger than males. In the 11 caves used as maternity roosts, the median number of Townsend's big-eared bats was 38, and the mean number was 49 individuals (SD = 47.1, range = 8 to 160 bats). Their fur is pale gray or brown above and buff colored on the underside. Corynorhinus townsendii (Townsend's Big Eared Bat) is a species of bats in the family Vespertilionidae. Their roost sites are very sensitive to human disturbance. P. 435 in L.M. Townsend's big-eared bats are very sedentary, with movement by females during the nursing season rarely exceeding 15 km., and movement at other times usually being less than 50 km. Their diet also includes lacewings, true flies, beetles and wasps. The U.S. FWS's Threatened & Endangered Species System track information about listed species in the United States Townsend’s Big-Eared Bat. Phylogenetic evidence based on morphological and genetic differences placed New World Big-eared Bats in the genus Corynorhinus 5. The underparts are a slightly paler shade of brown. Frequency: Currently, Townsend's big-eared bats are Species of Special Concern in California. Townsend's big-eared bats (Corynorhinus townsendii) are a medium-sized bat with very long ears. Townsend’s Big-eared Bat was added to the Species of Conservation Priority list during the revision of the Wildlife Action Plan in 2015. SWG T2- 5-R Distribution and Habitat Use of the Bats of North Dakota documented Townsend’s Big-eared Bats including a potential range expansion. This bat has extremely large ears that are very flexible, so they hang down around its head and face. Townsend's big-eared bat (Corynorhinus townsendii), a cavern roosting obligate, is one of these former Category II species (Brown and Berry 1991, Oliver 2000, Sherwin et al. The eastern subspecies lives in oak-hickory forests. The Townsend's big-eared bat eats small insects and rodents and prefers to roost in wide open spaces. Pallid Bat and Spotted Bat are the only other species with comparably large ears. There are a number of “long” or “big-eared” bat species from various genera in BC (e.g. Townsend's big-eared bats feed primarily on moths, which they locate through echolocation (sonar). Current status of . Townsend’s Big-eared Bat (Corynorhinus townsendii) Species Status Statement. On the basis of morphologic differences between members of the New and Old World species, Allen (1865) revised the taxonomic status to the newly erected genus Corynorhinus. The average Townsend's big-eared bat weighs between 0.18 and 0.46 ounce (5 and 13 grams). Cooper (1937) first described the Townsend’s big-eared bat and placed it in the Old World genus Plecotus. Thanks to conservation efforts by Homestake, the tunnel is now the best protected maternity roost for one of California's most endangered bats, the western subspecies of Townsend's big-eared bat (Plecotus townsendii townsendii). Table 1. When the ears are laid back they extend to the middle of its body. Landing is a delicate but agile maneuver in which the bat swoops from below, folds it's wings and quickly flips over and grasps onto the surface with a foot. Townsend's Big-eared Bat is present yearround in Montana, with summer or winter records from several localities (Hoffmann et al. Habitat Although the Townsend’s Big-eared Bat occurs in a wide variety of habitats including dry grasslands, coniferous and deciduous forests5, its distribution is strongly correlated with availability of caves or cave-like roosts6. 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