TaxonHub
Big Brown Bat

Big Brown Bat

Eptesicus fuscus

A widespread North American vespertilionid bat species known for its robust body and adaptability to diverse habitats across urban and rural environments.

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Big Brown Bat
Big Brown Bat
Big Brown Bat
Big Brown Bat
Big Brown Bat
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Ecology & Habitat

Habitat

Found throughout North America, ranging from southern Canada to Central America, inhabiting forests, urban areas, farmlands, and caves with temperature ranges between 0-35°C.

Ecological Role

Critical insectivore that consumes approximately 500-1000 insects per feeding night, helping control agricultural pest populations and maintaining ecological balance.

Morphology

  • SKIN COAT Dark brown to sepia fur covering body, with lighter ventral surface and smooth, flexible wing membranes
  • LIMBS WINGS Elongated forearm bones supporting membranous wing structures, enabling agile flight and aerial hunting
  • HEAD SENSORY Large ears, sophisticated echolocation system using ultrasonic frequencies between 25-85 kHz for navigation and prey detection
  • BODY STRUCTURE Medium-sized bat weighing 11-25 g, with total body length of 110-130 mm and wingspan of 330-370 mm
Data Source: TaxonHub Database
Image Credit: NPS
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Related Species in Vespertilionidae