Bats

Nearly all human cases of rabies in Canada over the past several years have been a result of bites from rabid bats. Bat bites may be hard to see.

Number of bats found positive with rabies in Hamilton

2012 2013 2014 2015 2016
0 1 2 2 2

These positive results only include bats that have bitten or scratched a person. These do not reflect the number of actual rabid bats in Hamilton.

Bats hibernate from November to March and are most active in the spring. They like to use attics for raising their babies. They can squeeze through very tiny spaces and often get into buildings through cracks in and around roofs, eaves, vents and windows.

How to bat-proof your home

Here are some suggestions:

  • Check places where bats may get into your home including chimneys, joints, building corners, pipes entering ceilings or walls in attics, between your porch and house, between shingles or where walls meet eaves.
  • Seal entry holes, making sure bats are not roosting in your attic.
  • Do not seal up openings in late summer or early fall as you could trap babies inside buildings.

What to do with bats on your property

Here are some tips for dealing with bats:

  • Stand outside of your house at sunset to see where bats appear. Seal the opening to your attic, shed or garage after they leave.
  • Shine bright lights, point a fan or play loud music in their roost site.
  • Use ultrasonic devices that emit sounds that bats do not like. 
  • Consider any bat that you see to be rabid. 
  • Hire a wildlife agency or trapper to remove bats from your home.
  • Call Animal Services at 905-574-3433 to report injured or dead bats.
  • Call the Ontario Ministry of Agriculture and Food at 1-877-424-1300 if your pet has been exposed to a bat to find out if the bat should be tested for rabies.