BC's Bat Species

There are 16 species of bats in BC (17 if you count the one record of a Big Free-tailed bat (Nyctinomops macrotis) that washed up in New Westminster in 1938), but not all of them occur in all parts of the Province. There is still a great deal to learn about bats in British Columbia, and with increased survey effort and better identification tools, our understanding of bat species distribution may change.

Common Name Scientific Name Provincial Status (BC) Federal Status
Big Brown Bat Eptesicus fuscus Not at risk  
Silver-haired Bat Lasionycteris noctivagans Not at risk  
Hoary Bat Lasiurus cinereus Not at risk  
California Myotis Myotis californicus Not at risk  
Long-eared Myotis Myotis evotis Not at risk  
Little Brown Myotis Myotis lucifugus Not at risk Endangered
Long-legged Myotis Myotis volans Not at risk  
Yuma Myotis Myotis yumanensis Not at risk  
Western Small-footed Myotis Myotis ciliolabrum Blue  
Fringed Myotis Myotis thysanodes Blue Data-deficient
Keen’s Myotis Myotis keenii Blue Data-deficient
Northern Myotis Myotis septentrionalis Blue Endangered
Eastern Red Bat Lasiurus borealis Unknown  
Townsend’s Big-eared Bat Corynorhinus townsendii Blue  
Pallid Bat Antrozous pallidus Red Threatened
Spotted Bat Euderma maculatum Blue Special concern
       Townsend's Big-eared Bat (Photo by Christine Carrieres)

 

 

 

 

 

 

Known Roosting Preferences:
Bats of British Columbia (BC) in summer and winter (modified from Craig and Holroyd 2004).

Common Name (Scientific Name)

Summer Roosts1

Winter Roosts1

 

Buildings

Bat House User

Other Roosts

 

Little Brown Myotis

Myotis lucifugus

 
Common

 
              Yes

Dead/dying trees, rock crevices, cliffs, mines

Mines, caves

Yuma Myotis

Myotis yumanensis

Common

Yes

Dead/dying trees, rock crevices, mines

 

Long-legged Myotis

Myotis volans

Occasional

Yes 

Cliffs, rock crevices, dead/dying trees, stumps

Mines, caves

Western small-footed Myotis

Myotis ciliolabrum

Occasional

 

Cliffs, rock crevices, mines,

Mines, cliff crevices

California Myotis

Myotis californicus

Occasional

Yes

Dead/dying trees, mines, bridges, rock outcrops & crevices

Buildings, mines, caves

Fringed Myotis

Myotis thysanodes

Occasional

 

Mines cliffs, rock crevices, dead/dying trees

Mines

Long-eared Myotis

Myotis evotis

Occasional

Yes

Cliffs, dead/dying trees, stumps, talus slopes, rock outcrops, crevices, mines

Mines, buildings

Keen’s Myotis

Myotis keenii

 

 

Mines, cliffs, dead/dying trees, rock crevices

Dead/dying trees, rock crevices?

Northern Myotis

Myotis septentrionalis

Rarely

 

Dead/dying trees

Mines

Townsend’s Big-eared Bat

Corynorhinus townsendii

Common

Yes but big ones!

Cliffs, caves, buildings, mines

Mines, caves

Eastern Red Bat

Lasiurus borealis

 

 

Trees

Migrates?

Hoary Bat

Lasiurus cinereus

 

 

Dead/dying trees, trees

Migrates

Silver-haired Bat2

Lasionycteris noctivagans

 

 

Trees, dead/dying trees (cottonwoods)

 mines, caves, wood piles

Big Brown Bat

Eptesicus fuscus

Common

Yes

Dead/dying trees, cliffs, rock crevices

Buildings, mines, rock crevices?

Pallid Bat

Antrozous pallidus

 Potentially

 

 

Cliffs, rock outcrops, Dead/dying trees, buildings, mines, orchard

Rock crevices?

Spotted Bat

Euderma maculatum

 

 

Cliffs

Cliffs, mines

1 Bat roost information from Barclay & Brigham 2001, Fenton et al. 2002, Holloway & Barclay 2001, Nagorsen & Brigham 1993, Rabe et al. 1998, Rambaldini 2003, Rasheed & Holroyd 1995, Sarell & Luoma 1994; Vonhof & Barclay 1997. Silver-haired bats are considered ‘migratory hibernators’ which means that local populations may make significant flights further south before hibernating. However, northern populations may move into southern parts of the province to hibernate.

An excellent reference book for the bats of BC is: Nagorsen, David W. and R. Mark Brigham. 1995. Bats of British Columbia. Royal British Columbia Museum Handbook, Victoria, BC.

For more information on the bats of BC see: