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line:xlsx:hash://sha256/181a039844a33e66a35a457b7ece741051086608e425a040051b79581d606b97!/Sheet1!/L537	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Aeorestes cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus	Lasiurus cinereus		[MSW2] Subgenus Lasiurus. Includes villosissimus, and semotus', see Sanborn and Crespo (1957:12), who revised the species. See Shump and Shump (198217, Mammalian Species, 185).; [MSW3] Subgenus Lasiurus, cinereus species group. Includes villosissimus and semotus; see Sanborn and Crespo (1957) and Morales and Bickham (1995). See Shump and Shump (1982b).; [HMW] Vespertilio linereus [sic] Palisot de Beauvois, 1796 , Philadelphia, Pennsylvania , USA . See L. egregius . Lasiurus cinereus is in the Hoary Bat group. Monotypic.; [batnames2022] Subgenus Lasiurus , cinereus species group. Does not include villosissimus and semotus ; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.; [MDD2022] previously included A. semotus and A. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis), but this has been a controversial taxonomic opinion; Novaes et al., 2018 suggested to retain the species within Lasiurus with Aeorestes and Dasypterus, but Baird et al., 2016 and Baird et al., 2021 listed the three taxa as distinct genera; following the most recent publication, we recognize the three genera, but this may be changed with additional input from taxonomic experts; [batnames2023] Subgenus Lasiurus , cinereus species group. Does not include villosissimus and semotus ; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.; [MDD2023] previously included A. semotus and A. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis) by some authors, but this has been a controversial taxonomic opinion within the bat systematics community and the species is retained under Lasiurus here following a recent taxonomic decision published between the MDD and Batnames Database; [MDD2025_2.0] previously included L. semotus and L. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis) by some authors, but this has been a controversial taxonomic opinion within the bat systematics community and the species is retained under Lasiurus here following a recent taxonomic decision published between the MDD and Batnames Database; [batnames2025_1.7] Subgenus Lasiurus, cinereus species group. Does not include villosissimus and semotus; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.; [MDD2025_2.2] previously included L. semotus and L. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis) by some authors, but this has been a controversial taxonomic opinion within the bat systematics community and the species is retained under Lasiurus here following a recent taxonomic decision published between the MDD and Batnames Database				semotus	(vagrant)	brasiliensis, grayi, mexicana, pallescens, pruinosus, semotus, villosissimus.	cinereus, villosissimus, semotus	cinereus, semotus, villosissimus	mexicana, pruinosus; villosissimus - brasiliensis, grayi, pallescens; Unassigned - fossilis			cinereus, semotus, villosissimus	cinereus - mexicana, pruinosus; villosissimus - brasiliensis, grayi, pallescens; Unassigned - fossilis	cinereus, linereus, pruinosus, mexicana		cinereus, semotus, villosissimus, Unassigned	cinereus - mexicana, pruinosus; villosissimus - brasiliensis, grayi, pallescens; Unassigned - fossilis	cinereus, linereus, pruinosus, mexicana	cinereus, linereus, pruinosus, mexicanus	cinereus, semotus, villosissimus	fossilis, cinereus - mexicana, pruinosus; villosissimus - brasiliensis, grayi, pallescens	cinereus (Palisot de Beauvois, 1796) [as emended]|pruinosus (Say in James, 1823)|cinereus (Le Conte, 1856) [justified emendation]|mexicanus (de Saussure, 1861)		Corbet, G.B. and Hill, J.E. 1980. A World List of Mammalian Species. British Museum (Natural History), London, 226 pp.	Hoary bat	S Canada – C Chile, N Argentina, Hawaii; vagrant Iceland, Orkney, Bermuda; (*)	Honacki, J.H., Kinman, K.E. and Koeppl, J.W. 1982. Mammal Species of the World: A Taxonomic and Geographic Reference. Allen Press, Lawrence, 694 pp.	Lasiurus cinereus	U.S.A., Pennsylvania, Philadelphia.	Beauvois	1796	Cat. Raisonne Mus. Peale Phila., p. 18.	Distribution: Ranging from central Canada to Guatemala, from Colombia and Venezuela to Chile and southeastern Brazil (mostly avoiding lowland tropical areas), Galapagos, and Hawaii. There are also records from Cuba, Hispaniola, Bermuda, Iceland, and the Orkney islands (north of Britain).		Corbet, G.B. and Hill, J.E. 1991. A World List of Mammalian Species. Third edition. Oxford University Press, London, 243 pp. ISBN 0-19-854017-5	Hoary bat	NC, S Canada – C Chile, C Argentina; Hawaii, Galapagos; Iceland, Orkney, Bermuda,	Koopman, K.F. 1993. Order Chiroptera. Pp. 137–242 in Wilson, D.E. and Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference. Second edition. Smithsonian Institution Press, Washington, 1206 pp.	Beauvois	1796	Cat. Raisonne Mus. Peale Philadelphia, p. 18.	Subgenus Lasiurus. Includes villosissimus, and semotus', see Sanborn and Crespo (1957:12), who revised the species. See Shump and Shump (198217, Mammalian Species, 185).	Colombia and Venezuela to C Chile, Uruguay, and C Argentina; Hawaii (USA); Guatemala and Mexico throughout the USA to S British Columbia, SE Mackensie, Hudson Bay and S Quebec (Canada); Galapagos; Bermuda; accidental on Cuba, Hispaniola, Iceland, and the Orkney Isis (Scotland).	USA, Pennsylvania, Philadelphia.		PALISOT DE BEAUVOIS	1796	Size relatively large (forearm length, 46-57 mm). Basicranial plane parallel with palate. Lacrimal tubercle poorly developed. Small anterior upper premolar usually present.	Distribution: Ranging from central Canada to Guatemala, from Colombia and Venezuela to Chile and southeastern Brazil (mostly avoiding lowland tropical areas), Galapagos, and Hawaii. There are also records from Cuba, Hispaniola, Bermuda, Iceland, and the Orkney islands (north of Britain).	Three subspecies are recognized:	L. c. cinereus (North American range), L. c. villosissimus (South American range), L. c. semotus (Hawaii). The Galapagos population has not been subspecifically allocated.	129	species	L. cinereus	PALISOT DE BEAUVOIS	1796	Lasiurus	subgenus	Lasiurus cinereus				Size relatively large (forearm length, 46-57 mm). Basicranial plane parallel with palate. Lacrimal tubercle poorly developed. Small anterior upper premolar usually present.	Three subspecies are recognized:		4. L. cinereus (PALISOT DE BEAUVOIS 1796).	4	NA			Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (Available from Johns Hopkins University Press, 1-800-537-5487 or (410) 516-6900, or at http://www.press.jhu.edu).	CHIROPTERA	Vespertilionidae	Vespertilioninae	Lasiurini	Lasiurus cinereus	Lasiurus	Lasiurus	cinereus	Palisot de Beauvois	y	1796		Cat. Raisonne Mus. Peale Phil.			18		Hoary Bat	USA, Pennsylvania, Philadelphia.	Colombia and Venezuela to C Chile, Bolivia, Uruguay, and C Argentina; Hawaii (USA); Guatemala and Mexico throughout the USA to S British Columbia, SE Mackenzie, Hudson Bay and S Quebec (Canada); Galapagos Isls (Ecuador); Bermuda; accidental on Cuba, Hispaniola, Iceland, and the Orkney Isls (Scotland).	U.S. ESA – Endangered as L. c. semotus. IUCN/SSC Action Plan (2001) – Not Evaluated as L. c. semotus; otherwise Lower Risk (lc).	mexicana Saussure, 1861; pruinosus Say, 1823; semotus H. Allen, 1890; villosissimus E. Geoffroy, 1806; brasiliensis Pira, 1905; grayi Tomes, 1857; pallescens Peters, 1871. Unassigned: fossilis Hibbard, 1950 [fossil].	Subgenus Lasiurus, cinereus species group. Includes villosissimus and semotus; see Sanborn and Crespo (1957) and Morales and Bickham (1995). See Shump and Shump (1982b).	4C3D87E8FF8D6A32FF539E301992B378	Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions	978-84-16728-19-0	hbmw_9_Vespertilionidae_716.pdf.imf	hash://md5/b004ff90fffb6a44fffc96591e00bb32	876	zip:hash://sha256/ec5fd314a06aba1a7b0b72f23e54ac625ae272bd98f82f1d01f4c09627d9e8e0!/treatments-xml-main/data/4C/3D/87/4C3D87E8FF8D6A32FF539E301992B378.xml	Lasiurus cinereus	Vespertilionidae	Lasiurus	cinereus		1796	Lasiure cendré @fr | Eisgraue Haarschwanzfledermaus @de | Lasiurocenizo @es	Vespertilio linereus [sic] Palisot de Beauvois, 1796 , Philadelphia, Pennsylvania , USA . See L. egregius . Lasiurus cinereus is in the Hoary Bat group. Monotypic.	From Canada (S British Columbia , SE Northwest Territories , Hudson Bay, Quebec , and Newfoundland) S throughout the USA and Mexico to W Guatemala ; also on Hawaii.	Head-body ¢.80-5— 83- 6 mm , tail 47-61 mm , ear 13-19 mm , hindfoot 8-13 mm , forearm 50-57 mm ; weight 20-35 g . Dorsum is generally mixed brown-gray, with heavy white tinge, and strongly frosted; wrist and shoulder patches are whitish; and throat is yellowish. Dorsal hairs are frosted and tricolored, with dark bases, yellowish middles, and blackish distal bands. Ventral fur is not heavily frosted. Hair on elbows, thumbs, and upper arm is yellowish; wing membrane has brownish ventral hair from body to nearly the wrist. Ears are short, thick, rounded, and yellowish, with blackish edges. Tragus is short and broad. Uropatagium is densely furred; calcar is twice as long as hindfoot, with lobes on tip. Skull is large and broad; rostrum is broad, with wide nasal openings; and auditory bullae are large. Teeth are large, and P?is present and reduced, sometimes absent. Dental formula is I 1/3, C1/1,P2/2,M 3/3 (x2) = 32. Chromosomal complement has 2n = 28 and FN = 48, with medium-sized submetacentric X-chromosome and small acrocentric Y-chromosome.	Temperate forests of pine-oak and lowlands of deciduous forests in dry and wet areas at elevations of 500-1900 m ( Mexico ). The Northern Hoary Bat has been caught in dense forests, open wooded clearings, and city parks.	Northern Hoary Bats have fast and straight flight that can reach 21- 3 km /h;itis considered one of the fastest North American bats. During flight, they can soar and glide. They might form groups when hunting and forage above treetops, along streams and lakeshores, and in wooded urban areas. Diet mainly contains moths but also flies, beetles, small wasps, grasshoppers, termites, and dragonflies. Northern Hoary Bats bite off the abdomen and thorax of insect prey, dropping the head and wings. Uncommon dietary items include leaves, grass, snakeskin, and Tricolored Bats ( Perimyotis subflavus ).	Breeding range of the Northern Hoary Bat in North America extends across Canada and north-central and north-eastern USA , south to Kansas , Kentucky , and possibly Arkansas , Louisiana , and Georgia . Copulations seem to occur mostly during autumn migration and parturitions from mid-May to early July; copulations might also occur on wintering grounds. Litters typical have two young (range 1-4). Lactating females were captured from late June to late July, and volant young started to be captured in late July. Neonates are brown, with much paler throat and head and nearly black feet. Silver-gray hairs cover dorsum, and eyes and ears are closed at birth. Young start to fly by three days old.	Northern Hoary Bats emerge to forage as late as one hour and 15 minutes after sunset or later. Their activity peak is c.5 hours after sunset, but greatest success for captures in mist nets occurred 3—4 hours after sunset, and in south-western USA , they seemed more active after midnight. They also fly on warm winter afternoons. They were captured foraging at a wide range of temperatures (0-22°C). The Northern Hoary Bat is mainly found roosting in trees but occasional a woodpecker hole, a squirrel nest, buildings, and caves. When roosting in trees, it seems to prefer trees that border clearings, usually on foliage 3-5 m aboveground. Search-approach echolocation calls are CF, with c.10 milliseconds duration; frequency is low, sweeping from 20 to 17 kHz and produced every 3-3 milliseconds. Tracking calls sweep from 41 kHz to 21 kHz, and they are shorter and have higher rates than search-approach calls. Terminal-stage calls are steep FM signals, short, and at a rate that can reach 190 calls/second. Occasional predators include American kestrels (Falco sparverius), sharpshinned hawks (Accipiter striatus), and corn snakes (Pantherophis guttatus).	The Northern Hoary Bat can wrap its uropatagium around its body for insulation and become torpid when inactive during the day or between foraging pauses at night. Migration seems to take place through northern Florida, with large groups flying in waves. Autumn migration occurs from late October to late November and spring migration from February to early May; spring migration seems to be less organized than autumn migration. Wintering grounds are in southern California, Mexico , and Guatemala . Some individuals probably remain in northern areas and hibernate. This species is solitary, roosting separately during the day. Sexes are generally separated during warm months, except during mating. Females seem to be more concentrated in western North America. In California, elevational separation of sexes is apparent, with females in lowlands and coastal valleys and males in foothills and mountains.	Classified as Least Concern on The IUCN Red List. The Northern Hoary Bat has a wide distribution that includes several protected areas. Main threats in Mexico are deforestation and human disturbance.	Alvarez-Castafieda & Gonzalez-Ruiz (2018) | Anderson (2002) | Baird et al. (2015) | Baker & Patton (1967) | Barbour & Davis (1969) | Bickham (1979a) | Bonaccorso & McGuire (2013) | Gardner & Handley (2008) | Gonzélez, Barquez & Arroyo-Cabrales (2016) | Hall & Jones (1961) | Jones (1965) | Mikula et al. (2016) | Miller (1897) | Morales et al. (2014c) | Novaes, Garbino et al. (2018) | Shump & Shump (1982b) | Simmons (2005) | Williams & Findley (1979) | Wilson & Ruff (1999)	https://zenodo.org/record/6398344/files/figure.png	252. Northern Hoary Bat Lasiurus cinereus French: Lasiure cendré / German: Eisgraue Haarschwanzfledermaus / Spanish: Lasiuro cenizo Taxonomy. Vespertilio linereus [sic] Palisot de Beauvois, 1796 , Philadelphia, Pennsylvania , USA . See L. egregius . Lasiurus cinereus is in the Hoary Bat group. Monotypic. Distribution. From Canada (S British Columbia , SE Northwest Territories , Hudson Bay, Quebec , and Newfoundland) S throughout the USA and Mexico to W Guatemala ; also on Hawaii. Descriptive notes. Head-body ¢.80-5— 83- 6 mm , tail 47-61 mm , ear 13-19 mm , hindfoot 8-13 mm , forearm 50-57 mm ; weight 20-35 g . Dorsum is generally mixed brown-gray, with heavy white tinge, and strongly frosted; wrist and shoulder patches are whitish; and throat is yellowish. Dorsal hairs are frosted and tricolored, with dark bases, yellowish middles, and blackish distal bands. Ventral fur is not heavily frosted. Hair on elbows, thumbs, and upper arm is yellowish; wing membrane has brownish ventral hair from body to nearly the wrist. Ears are short, thick, rounded, and yellowish, with blackish edges. Tragus is short and broad. Uropatagium is densely furred; calcar is twice as long as hindfoot, with lobes on tip. Skull is large and broad; rostrum is broad, with wide nasal openings; and auditory bullae are large. Teeth are large, and P?is present and reduced, sometimes absent. Dental formula is I 1/3, C1/1,P2/2,M 3/3 (x2) = 32. Chromosomal complement has 2n = 28 and FN = 48, with medium-sized submetacentric X-chromosome and small acrocentric Y-chromosome. Habitat. Temperate forests of pine-oak and lowlands of deciduous forests in dry and wet areas at elevations of 500-1900 m ( Mexico ). The Northern Hoary Bat has been caught in dense forests, open wooded clearings, and city parks. Food and Feeding. Northern Hoary Bats have fast and straight flight that can reach 21- 3 km /h;itis considered one of the fastest North American bats. During flight, they can soar and glide. They might form groups when hunting and forage above treetops, along streams and lakeshores, and in wooded urban areas. Diet mainly contains moths but also flies, beetles, small wasps, grasshoppers, termites, and dragonflies. Northern Hoary Bats bite off the abdomen and thorax of insect prey, dropping the head and wings. Uncommon dietary items include leaves, grass, snakeskin, and Tricolored Bats ( Perimyotis subflavus ). Breeding. Breeding range of the Northern Hoary Bat in North America extends across Canada and north-central and north-eastern USA , south to Kansas , Kentucky , and possibly Arkansas , Louisiana , and Georgia . Copulations seem to occur mostly during autumn migration and parturitions from mid-May to early July; copulations might also occur on wintering grounds. Litters typical have two young (range 1-4). Lactating females were captured from late June to late July, and volant young started to be captured in late July. Neonates are brown, with much paler throat and head and nearly black feet. Silver-gray hairs cover dorsum, and eyes and ears are closed at birth. Young start to fly by three days old. Activity patterns. Northern Hoary Bats emerge to forage as late as one hour and 15 minutes after sunset or later. Their activity peak is c.5 hours after sunset, but greatest success for captures in mist nets occurred 3—4 hours after sunset, and in south-western USA , they seemed more active after midnight. They also fly on warm winter afternoons. They were captured foraging at a wide range of temperatures (0-22°C). The Northern Hoary Bat is mainly found roosting in trees but occasional a woodpecker hole, a squirrel nest, buildings, and caves. When roosting in trees, it seems to prefer trees that border clearings, usually on foliage 3-5 m aboveground. Search-approach echolocation calls are CF, with c.10 milliseconds duration; frequency is low, sweeping from 20 to 17 kHz and produced every 3-3 milliseconds. Tracking calls sweep from 41 kHz to 21 kHz, and they are shorter and have higher rates than search-approach calls. Terminal-stage calls are steep FM signals, short, and at a rate that can reach 190 calls/second. Occasional predators include American kestrels (Falco sparverius), sharpshinned hawks (Accipiter striatus), and corn snakes (Pantherophis guttatus). Movements, Home range and Social organization. The Northern Hoary Bat can wrap its uropatagium around its body for insulation and become torpid when inactive during the day or between foraging pauses at night. Migration seems to take place through northern Florida, with large groups flying in waves. Autumn migration occurs from late October to late November and spring migration from February to early May; spring migration seems to be less organized than autumn migration. Wintering grounds are in southern California, Mexico , and Guatemala . Some individuals probably remain in northern areas and hibernate. This species is solitary, roosting separately during the day. Sexes are generally separated during warm months, except during mating. Females seem to be more concentrated in western North America. In California, elevational separation of sexes is apparent, with females in lowlands and coastal valleys and males in foothills and mountains. Status and Conservation. Classified as Least Concern on The IUCN Red List. The Northern Hoary Bat has a wide distribution that includes several protected areas. Main threats in Mexico are deforestation and human disturbance. Bibliography. Alvarez-Castafieda & Gonzalez-Ruiz (2018), Anderson (2002), Baird et al. (2015), Baker & Patton (1967), Barbour & Davis (1969), Bickham (1979a), Bonaccorso & McGuire (2013), Gardner & Handley (2008), Gonzélez, Barquez & Arroyo-Cabrales (2016), Hall & Jones (1961), Jones (1965), Mikula et al. (2016), Miller (1897), Morales et al. (2014c), Novaes, Garbino et al. (2018), Shump & Shump (1982b), Simmons (2005), Williams & Findley (1979), Wilson & Ruff (1999).	Simmons, N.B. and A.L. Cirranello. 2022B. Bat Species of the World: A taxonomic and geographic database. Accessed on 10/11/2022.	Vespertilionidae	Lasiurus cinereus	Lasiurus	Aeorestes	cinereus	Palisot de Beauvois	1796	1	Cat. Raisonne Mus. Peale Phil.	p. 18	Hoary Bat	 mexicana Saussure, 1861; pruinosus Say, 1823; <b>semotus</b> H. Allen, 1890; <b> villosissimus </b> E. Geoffroy, 1806; brasiliensis Pira, 1905; grayi Tomes, 1857; pallescens Peters, 1871. <b>Unassigned</b>: fossilis Hibbard, 1950 [fossil].	USA, Pennsylvania, Philadelphia.	Colombia and Venezuela to C Chile, Bolivia, Uruguay, and C Argentina; Hawaii (USA); Honduras, Guatemala and Mexico throughout the USA to S British Columbia, SE Mackenzie, Hudson Bay and S Quebec (Canada); Galapagos Isls (Ecuador); Bermuda; accidental on Cuba, Hispaniola, Iceland, and the Orkney Isls (Scotland).	Not listed.	Least Concern	Subgenus Lasiurus , cinereus species group. Does not include villosissimus and semotus ; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.	Mammal Diversity Database. (2023). Mammal Diversity Database (Version 1.11) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830771 released 15 April 2023	Aeorestes cinereus	23	Northern Hoary Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	VESPERTILIONIDAE	VESPERTILIONINAE	LASIURINI	Aeorestes	NA	cinereus	Palisot de Beauvois	1796	1						Philadelphia, Pennsylvania, USA.			cinereus (Palisot de Beauvois, 1796)|linereus (Palisot de Beauvois, 1796)|pruinosus (Say, 1823)|mexicana (Saussure, 1861)	previously included A. semotus and A. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis), but this has been a controversial taxonomic opinion; Novaes et al., 2018 suggested to retain the species within Lasiurus with Aeorestes and Dasypterus, but Baird et al., 2016 and Baird et al., 2021 listed the three taxa as distinct genera; following the most recent publication, we recognize the three genera, but this may be changed with additional input from taxonomic experts	Baird, A. B., Braun, J. K., Mares, M. A., Morales, J. C., Patton, J. C., Tran, C. Q., & Bickham, J. W. (2015). Molecular systematic revision of tree bats (Lasiurini): doubling the native mammals of the Hawaiian Islands. Journal of Mammalogy, 96(6), 1255-1274.|Novaes, R. L. M., Garbino, G. S., Claudio, V. C., & Moratelli, R. (2018). Separation of monophyletic groups into distinct genera should consider phenotypic discontinuities: the case of Lasiurini (Chiroptera: Vespertilionidae). Zootaxa, 4379(3), 439-440.|Baird, A. B., Braun, J., Engstrom, M., Lim, B., Mares, M., Patton, J., & Bickham, J. (2021). On the utility of taxonomy to reflect biodiversity: the example of Lasiurini (Chiroptera: Vespertilionidae). Therya, 12(2), 283.	Canada|United States|Mexico|Guatemala|Hawai'i	North America|Oceania	Nearctic	LC	0	0	0	Lasiurus_cinereus	1	manual	Lasiurus_cinereus	0	IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. https://www.iucnredlist.org. Accessed on [28 September, 2022].	11345	Lasiurus cinereus	ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE	Lasiurus	cinereus	(Palisot de Beauvois, 1796)		20000000	Lasiurus cinereus	Least Concern		2016	2015-07-20 00:00:00 UTC	3.1	English	Hoary Bat is listed as Least Concern because of its wide distribution, presumed large population, occurrence in a number of protected areas, tolerance to some degree of habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.	The species is insectivorous and migratory. It is poorly known, however Hoary Bats are thought to prefer trees at the edge of clearings, but have also been found in trees in heavy forests, open wooded glades, and shade trees along urban streets and in city parks (Anderson 2002). They roost 3 to 5 m above ground during the day, usually in the foliage of trees. They prefer dense leaf coverage above and an open area below. They also prefer trees that border clearings. They have been seen roosting in a woodpecker hole in British Columbia, in the nest of a gray squirrel, and under a driftwood plank. Occasionally they are found clinging to the overhangs of buildings and in caves in the latter part of the summer. They often have trouble finding their way out of the caves and die there (Anderson 2002). Hoary Bats reach their peak activity at about five hours after sunset, although they may occasionally be seen flying on warm winter afternoons. Their flight is strong and direct, reaching speeds of thirteen miles/hr. While hunting, they soar and glide. They forage about the tree tops, along streams and lake shores, and in urban areas where there are lots of trees. These bats stop to rest between meals at night. Hoary bats are solitary and feeding is the only time that they appear to associate with other bat species. Hoary bats often form groups when hunting for insects (Anderson 2002).	Hoary Bats are widespread and secure over much of their range (Anderson 2002). Deforestation and human disturbance are threats in Mexico (Arroyo-Cabrales pers. comm).	The species is common.	Unknown	The species is widely distributed. It occurs in Colombia and Venezuela; Central Chile, Bolivia, Uruguay, Paraguay, and Central Argentina; Hawaii (USA); Guatemala and Mexico throughout the USA to Southern British Columbia, Southeastern Mackenzie, Hudson Bay and Southern Quebec (Canada); Galápagos Islands (Ecuador) (Simmons 2005); Panama (Samudio pers. comm.) and also in Brazil.		Terrestrial	Because of its very extensive distribution in the Americas, this species is found in several protected areas through its range. However, most of the available studies are focused on North American populations, and very little is known on rost ecology, diet, reproduction, and taxonomic status of southern populations. For example, South American populations have been considered to represent one or two subspecies (Shrump and Shrump 1982), and the Hawaiian populations remains a mystery in term of its taxonomic status. Roosting ecology is a key factor for this species, but most of what is known comes from studies in North America only.	Nearctic|Neotropical		FALSE	FALSE	Global	Simmons, N. B., & Cirranello, A. L. (2023). Batnames.org Species List Version 1.4 (1.4). Zenodo. https://doi.org/10.5281/zenodo.8136157 	Vespertilionidae	Lasiurus	Aeorestes	cinereus	Palisot de Beauvois	1796	1	Cat. Raisonne Mus. Peale Phil.	p. 18	Hoary Bat	 mexicana Saussure, 1861; pruinosus Say, 1823; <b>semotus</b> H. Allen, 1890; <b> villosissimus </b> E. Geoffroy, 1806; brasiliensis Pira, 1905; grayi Tomes, 1857; pallescens Peters, 1871. <b>Unassigned</b>: fossilis Hibbard, 1950 [fossil].	USA, Pennsylvania, Philadelphia.	Colombia and Venezuela to C Chile, Bolivia, Uruguay, and C Argentina; Hawaii (USA); Honduras, Guatemala and Mexico throughout the USA to S British Columbia, SE Mackenzie, Hudson Bay and S Quebec (Canada); Galapagos Isls (Ecuador); Bermuda; accidental on Cuba, Hispaniola, Iceland, and the Orkney Isls (Scotland).	Not listed.	Least Concern	Subgenus Lasiurus , cinereus species group. Does not include villosissimus and semotus ; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.	Lasiurus cinereus	1005577	23	Northern Hoary Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	CHIROPTERA	VESPERTILIONIFORMES	NA	NA	VESPERTILIONOIDEA	Vespertilionidae	VESPERTILIONINAE	LASIURINI	Lasiurus	Aeorestes	cinereus	Palisot de Beauvois	1796	1						Philadelphia, Pennsylvania, USA.			cinereus (Palisot de Beauvois, 1796)|linereus (Palisot de Beauvois, 1796)|pruinosus (Say, 1823)|mexicana (Saussure, 1861)	previously included A. semotus and A. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis) by some authors, but this has been a controversial taxonomic opinion within the bat systematics community and the species is retained under Lasiurus here following a recent taxonomic decision published between the MDD and Batnames Database	Baird, A. B., Braun, J. K., Mares, M. A., Morales, J. C., Patton, J. C., Tran, C. Q., & Bickham, J. W. (2015). Molecular systematic revision of tree bats (Lasiurini): doubling the native mammals of the Hawaiian Islands. Journal of Mammalogy, 96(6), 1255-1274.|Novaes, R. L. M., Garbino, G. S., Claudio, V. C., & Moratelli, R. (2018). Separation of monophyletic groups into distinct genera should consider phenotypic discontinuities: the case of Lasiurini (Chiroptera: Vespertilionidae). Zootaxa, 4379(3), 439-440.|Baird, A. B., Braun, J., Engstrom, M., Lim, B., Mares, M., Patton, J., & Bickham, J. (2021). On the utility of taxonomy to reflect biodiversity: the example of Lasiurini (Chiroptera: Vespertilionidae). Therya, 12(2), 283.|Soto-Centeno, J. A., & Simmons, N. B. (2022). Environmentally driven phenotypic convergence and niche conservatism accompany speciation in hoary bats. Scientific reports, 12(1), 21877.|Francis, C. M., Simmons, N. B., Van Cakenberghe, V., Upham, N. S., & Burgin, C. J. (2023). On the taxonomy of Lasiurus. Zenodo, 1-11. DOI: https://doi.org/10.5281/zenodo.7696845			USA(AL,AZ,AR,CA,CO,CT,DE,DC,FL,GA,ID,IL,IN,IA,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,PA,RI,SC,SD,TN,TX,UT,VT,VA,WA,WV,WI,WY,HI)	Canada|United States|Mexico|Guatemala|Hawai'i	North America|Oceania	Nearctic	LC	0	0	0	Lasiurus_cinereus	1	manual	Lasiurus_cinereus	0	Burgin, C. J., Zijlstra, J. S., Becker, M. A., Handika, H., Alston, J. M., Widness, J., Liphardt, S., Huckaby, D. G., and Upham, N. S. (2025). How many mammal species are there now? Updates and trends in taxonomic, nomenclatural, and geographic knowledge. Journal of Mammalogy in revision: TBD. https://doi.org/10.1101/2025.02.27.640393	Lasiurus_cinereus	1005577	23	Northern Hoary Bat		Theria	Placentalia	Boreoeutheria	Laurasiatheria	Chiroptera	Yangochiroptera	NA	NA	Vespertilionoidea	Vespertilionidae	Vespertilioninae	Lasiurini	Lasiurus	Aeorestes	cinereus	Palisot de Beauvois	1	Vespertilio linereus	Palisot de Beauvois, A.M.F.J. 1796. Catalogue raisonné du Museum, de Mr. C. W. Peale, membre de la société philosophique de Pensylvanie. Parent, Philadelphia, 42 pp.	https://gallica.bnf.fr/ark:/12148/bpt6k9614260r/f36.item				Philadelphia, Pennsylvania, USA.			previously included L. semotus and L. villosissimus; has been moved from Lasiurus to Aeorestes (previously a synonym of Myotis) by some authors, but this has been a controversial taxonomic opinion within the bat systematics community and the species is retained under Lasiurus here following a recent taxonomic decision published between the MDD and Batnames Database	Baird, A. B., Braun, J. K., Mares, M. A., Morales, J. C., Patton, J. C., Tran, C. Q., & Bickham, J. W. (2015). Molecular systematic revision of tree bats (Lasiurini): doubling the native mammals of the Hawaiian Islands. Journal of Mammalogy, 96(6), 1255-1274.|Novaes, R. L. M., Garbino, G. S., Claudio, V. C., & Moratelli, R. (2018). Separation of monophyletic groups into distinct genera should consider phenotypic discontinuities: the case of Lasiurini (Chiroptera: Vespertilionidae). Zootaxa, 4379(3), 439-440.|Baird, A. B., Braun, J., Engstrom, M., Lim, B., Mares, M., Patton, J., & Bickham, J. (2021). On the utility of taxonomy to reflect biodiversity: the example of Lasiurini (Chiroptera: Vespertilionidae). Therya, 12(2), 283.|Soto-Centeno, J. A., & Simmons, N. B. (2022). Environmentally driven phenotypic convergence and niche conservatism accompany speciation in hoary bats. Scientific reports, 12(1), 21877.|Francis, C. M., Simmons, N. B., Van Cakenberghe, V., Upham, N. S., & Burgin, C. J. (2023). On the taxonomy of Lasiurus. Zenodo, 1-11. DOI: https://doi.org/10.5281/zenodo.7696845			USA(AL,AZ,AR,CA,CO,CT,DE,DC,FL,GA,ID,IL,IN,IA,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,PA,RI,SC,SD,TN,TX,UT,VT,VA,WA,WV,WI,WY)	Canada|United States|Mexico|Guatemala	North America	Nearctic|Neotropic|Oceania (Biorealm)	LC	0	0	0	Lasiurus_cinereus	1	manual	Lasiurus_cinereus	0	Simmons, N. B., & Cirranello, A. L. (2025). Batnames.org Species List Version 1.7 (1.7). Zenodo. https://doi.org/10.5281/zenodo.14796586	Vespertilionidae	Lasiurus	Aeorestes	cinereus	Palisot de Beauvois	1796	1	Cat. Raisonne Mus. Peale Phil.	p. 18	Hoary Bat	mexicana Saussure, 1861; pruinosus Say, 1823; semotus H. Allen, 1890; villosissimus E. Geoffroy, 1806; brasiliensis Pira, 1905; grayi Tomes, 1857; pallescens Peters, 1871. Unassigned: fossilis Hibbard, 1950 [fossil].	USA, Pennsylvania, Philadelphia.	Colombia and Venezuela to C Chile, Bolivia, Uruguay, and C Argentina; Hawaii (USA); Honduras, Guatemala and Mexico throughout the USA to S British Columbia, SE Mackenzie, Hudson Bay and S Quebec (Canada); Galapagos Isls (Ecuador); Bermuda; accidental on Cuba, Hispaniola, Iceland, and the Orkney Isls (Scotland).	<a href='https://cites.org/eng/app/appendices.php' target='_blank'>Not Listed</a>	<a href='https://www.iucnredlist.org/species/11345/22120305/' target='_blank'>Least Concern</a>	Subgenus Lasiurus, cinereus species group. Does not include villosissimus and semotus; see Baird et al. (2015), but see Sanborn and Crespo(1957) and Morales and Bickham (1995) for an alternative view.		Mammal Diversity Database. (2025). Mammal Diversity Database (Version 2.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.15007505	NA	Lasiurus cinereus; Lasiurus cinereus; Lasiurus cinereus; Aeorestes cinereus; Lasiurus cinereus; Lasiurus cinereus; cinereus; semotus; villosissimus; mexicana; pruinosus; villosissimus - brasiliensis; grayi; pallescens; Unassigned - fossilis; semotus; villosissimus; mexicana; pruinosus; villosissimus - brasiliensis; grayi; pallescens; Unassigned - fossilis; cinereus; linereus; pruinosus; mexicana; Lasiure cendré; Eisgraue Haarschwanzfledermaus; Lasiurocenizo; Northern Hoary Bat; Hoary Bat; Hoary Bat; L. cinereus