Little Brown Bat - Photo Copyright Ward Cameron 2003 - Click to view a larger image Little Brown Bat - Photo Copyright Ward Cameron 2003 - Click to view a larger image Little Brown Bat - Photo Copyright Ward Cameron 2003 - Click to view a larger image Little Brown Bat - Photo Copyright Ward Cameron 2003 - Click to view a larger image 
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Little Brown Bat
Myotis lucifugus

Bats
Common Bats (Vespertilionidae)

Measurement: Size: 8-9.5 cm Weight: 12 g (0.3-0.4 oz)

Description: A very common small bat across the entire region, the little brown bat is medium brown, darker on the shoulders, face and ears, and lighter on the belly. The tail and membrane are almost hairless. This small bat spends the days either roosting in trees, or under the attics of old buildings. They may be seen fluttering across the evening sky from the montane to the alpine, always vigilant for their favourite food--mosquitoes. Little brown bats hibernate through the winter, reappearing with the spring weather and a fresh supply of flying insects. The hibernaculae, as the caves in which they sleep away the winter are called, must be slightly above freezing for the bats to survive. It must also be cold enough to keep their metabolism down to a level that will allow them to survive only on their accumulated fat layers. They may spend the summer over 200 km from their winter dens. Mating is done in the fall, but the egg remains unfertilized until the spring. It then begins to develop with gestation lasting 50 to 60 days. For the first few weeks, the young hitch a ride on the back of their mother. They may live upwards of 30 years.

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All Material Ward Cameron 2005

 

 

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