Ottawa

Bats forced out of church's belfry saved from frigid fate

A colony of bats forced from their longtime home inside an Almonte church tower will spend the winter hibernating at a local animal sanctuary before being released in the spring.

Dozens of winged mammals returned to Almonte church in mid-November to find usual entrance blocked

Staff at the Rideau Valley Wildlife Sanctuary have had to teach the weakened bats to eat non-flying insects so they can gain back the weight they lost while attached to the church's wall. (Jessa Runciman/CBC)

It was a surprising sight for the congregation of the Holy Name of Mary Parish in Almonte, Ont.: dozens of bats attached to the outside wall of the old stone church on Bridge Street, hibernating. 

They were very groggy. Some would pop off like ice cubes.- Mike Anissimoff, Canadian Wildlife Federation

The bats had lived in the church's tower for 30 years, but when renovations in August blocked off their usual entrance, they moved on. 

However, when the cold weather arrived in mid-November, the colony returned to the church to hibernate.

"This was a colony that was roosting in the church," explained Mike Anissimoff, a bat specialist with the Canadian Wildlife Federation. "So they started sleeping on the outside of the church."
Forty-six bats attached themselves to the outside of the Holy Name of Mary Parish church in Almonte, Ont., the colony's home for about three decades. (Google Streetview)

Forty-six of the flying mammals had stuck themselves to the church's wall. Worried about the bats' chances of surviving the winter there, the congregation called in Anissimoff. He arrived just in time.

"They were using a winter's worth of fat storage in two or three weeks," he said. 

"They were very groggy. Some would pop off like ice cubes, but then others would kinda flip their wings out or they'd open their mouths."

Hibernating in 'bat fridge'

After enlisting the help of the fire department, all of the bats were safely removed from the church wall and taken to be rehabilitated at the Rideau Valley Wildlife Sanctuary. 

"Some were dehydrated or underweight.… We have to teach them to eat non-flying insects," said Linda Laurus, the sanctuary's director.

Once they're back to a healthy weight, the animals will go into the "bat fridge" to continue hibernating.

This is the largest cohort of bats the sanctuary has ever dealt with at any one time, and space in the fridge is running out. 

The rehabilitated bats will be released in the spring, Laurus said. But what will happen next winter?

Conservation officers said they hope the congregation will build bat boxes near the church, because the colony has been in the area for so long and will likely return to its longtime home. 

"Bats are often viewed as pests, but they're not pests," Anissimoff said.
Two bats hang out at the sanctuary while awaiting their turn to go into the 'bat fridge.' (Jessa Runciman/CBC)