Silver-haired Bat

Hibernating Silver-haired Bat

The forest-dwelling silver-haired bat (Lasionycteris noctivagans) eats a wide range of insects, including moths. The black fur is silver-tipped, giving the bat its name.


Kootenay Bat Project


  • From southern Alaska to northern Mexico
  • Populations occur throughout Columbia Basin


  • Occurs primarily in forested habitats
  • Maternity roosts found primarily in trees ? under loose bark, in natural cavities, or in bird-excavated cavities. Other roost types may include caves, other rock features, and buildings
  • Both males and females change roosts frequently


  • Mates in late September and fertilization is delayed until spring
  • Females form small maternity colonies of up to 70 individuals. Females give birth to one to two young after gestation of 50 to 60 days. Young are volant (able to fly) in over 36 days

Listing and Date

Listing Date
B.C. List Yellow
COSEWIC Not listed N/A
SARA Not listed N/A

Threats to Species

  • Loss of roosting habitat (forestry, reservoir creation)
  • Loss of foraging habitat

Select Reports

  • Kootenay Community Bat Project: 2006 Summary report
  • A Summary of Bat Research in the Pend D?Oreille Valley in Southern British Columbia

For more information on this species, visit:
The BC Species and Ecosystem Explorer where you should enter "Silver-haired Bat" or "Lasionycteris noctivagans" in the Species Name field.



Columbia Spotted Frog
Long-toed Salamander
Northern Leopard Frog
Western Toad

Common Nighthawk
Great Blue Heron
Harlequin Duck
Lewis’s Woodpecker
Northern Goshawk
Sharp-tailed Grouse
Vaux’s Swift
Western Screech Owl
Yellow Warbler
Yellow-breasted Chat

Bull Trout
White Sturgeon

Common Camas
Whitebark Pine

Big Brown Bat
Rocky Mountain Bighorn Sheep
Grizzly Bear
Selkirk Least Chipmunk
Mountain Caribou
Mountain Goat
Mule Deer
California Myotis
Fringed Myotis
Little Brown Myotis
Long-eared Myotis
Long-legged Myotis
Northern Myotis
Yuma Myotis
Silver-Haired Myotis
Townsend's Big-eared Bat
White-tailed Deer
Yellow-pine Chipmunk

Western Painted Turtle
Western Yellow-bellied Racer
Western Skink

© 2013 Read our disclaimer.