Order : Chiroptera
Family : Vespertilionidae
Subfamily : Vespertilioninae
Genus : Plecotus
Facts about the genus Plecotus, the big-eared bats
Scientific name: The genus name Plecotus is from two Greek words, plekos (to twist) and otus (ear), referring to this bat's habit of twisting its long ears almost in a spiral as it folds them down over its back when roosting.
The force coefficient, total mechanical power output, and mechanical and aerodynamic efficiencies are all plausible, demonstrating that the slow flapping flight of Plecotus is thus explicable by steady-state aerodynamics. (Full text)
A maternity colony of TownsendÃ¢â‚¬â„¢s big-eared bats is at home here.
The Townsend's big-eared bats is listed as a US Fish and Wildlife and a California species of concern and a Forest Service sensitive species.
And in Washington state, a colony of Townsends big-eared bats is using a new bat cabin and a rebuilt building that was hauled into place by truck.
This cave currently has very few hibernating bats (an 11 year average for western big-eared bats is 4 bats). (Full text)
1990: Townsend's big eared bats is found in the Bitter Lake National Wildlife Refuge (Bitter Lake National Wildlife Refuge, 1990) *24*.
For example, below is a Bayes net that depicts how the population of Townsend's big-eared bats is linked to various habitats being available, their temperature during Breeding times or Hibernation times, and so forth. (Full text)
Virginia big-eared bats are pale to dark brown on the back and light brown underneath. (Full text)
Townsend's big-eared bats are found throughout western North America, from British Columbia south to Oaxaca, Mexico, with two endangered subspecies in isolated areas in the Ozark and Central Appalachian regions of the United States.
PHOTOS BY MERLIN D TUTTLE Townsend's big-eared bats are exceptionally sensitive to human disturbance.
Rafinesqueâ€™s big-eared bats are thought to use forest and forest edge areas for foraging, preying mostly on moths, which they frequently eat at roost sites. (Full text)
During the winter season when Rafinesqueâ€™s big-eared bats are hibernating in caves or mines, disturbance can cause them to wake and
Townsend's Big-eared Bats are adept at discriminating prey from background noise using echolocation.
In the ACE Basin, Rafinesques big-eared bats are known to inhabit Donnelley Wildlife Management Area, where they roost in an old plantation house.
Townsend's big-eared bats are, Woodruff says, an uncommon species that's found in low numbers from British Columbia to Mexico.