Survival and condition of big brown bats
(Eptesicus fuscus) after radiotagging.
Food of the big brown bat
, Eptesicus fuscus, from maternity colonies in Indiana and Illinois.
What is one similarity between the big brown bat
and the hoary bat?
It looks like even the big brown bat
has declined somewhat," said Mr.
In seasonal pools within palustrine woodlands of the northern Great Lakes region, Francl (2008) documented all six extant species (Little brown bat, Big brown bat
, Northern myotis [Myotis septentrionalis Trovessart], Red hat, Hoary bat, and Silver-haired bat; a seventh, the Eastern pipstrelle [Perimyotis subflavus Menu], is likely restricted to areas of Michigan's Upper Peninsula with mines or caves present; Kurta 1995).
Little brown and big brown bats
commonly roost in buildings in the Northeast.
Burnett SC, Kazial KA, and Masters WM: Discriminating individual big brown bat
(Eptesicus fuscus) sonar vocalizations in different recording situations.
Eleven species of bats are typically considered to occur in Ohio (Gottschang 1981; Belwood 1998; Whitaker and Hamilton 1998): little brown myotis (Myotis lucifugus), northern myotis, (Myotis septentrionalis), Indiana bat (Myotis sodalis), small-footed myotis (Myotis leibii), big brown bat
(Eptesicus fuscus), evening bat (Nycticeius humeralis), eastern pipistrelle (Pipistrellus subflavus), red bat (Lasiurus borealis), hoary bat (Lasiurus cinereus), silver-haired bat (Lasionycteris noctivagans), and Rafinesque's big-eared bat (Corynorhinus rafinesquii).
Using echolocation, a big brown bat
can swoop down, capture a bug, and eat it-all in about 2 seconds.
Bats that hunt in the open, such as the big brown bat
, generate amazingly high-volume sound: 110 decibels measured at 4 inches from the bat's mouth--the loudness of a smoke detector 4 inches from your ears.
The six species of bats we get here in Manitoba, Little Brown Bat, Big Brown Bat
, Silver-haired Bat, Hoary Bat, Red Bat, and the more uncommon Northern Long-eared Bat all either migrate or hibernate in winter.
Professor of Life Sciences at Indiana State University, estimates in his article, "Food of the big brown bat
Eptesicus fuscus from maternity colonies in Indiana and Illinois," that a colony of 150 big brown bats
could eat enough cucumber beetles to equal "the potential destruction of 33,000,000 rootworms.
Of the several species that seem to adapt well to living in bat houses, the most common are the little brown bat and the big brown bat
in the middle and northern U.
Short acoustic surveys by the authors 2009-2013 detected, in addition to the above species, the Big Brown Bat
(Eptesicus fuscus), Hoary Bat (Lasiurus cinereus), and Silver-haired Bat (Lasionycteris noctivagans).
include the big brown bat
(Eptesicus fuscus) and the little brown bat (Myotis lucifugus), both of which have been shown to feed opportunistically on large aquatic insect emergences (Hamilton and Barclay, 1998; Clare et at, 2011) including those of Ephemeroptera (mayflies).