Calling all birdwatchers: Rare snowy owl 'irruption' grips Toronto

Bird watchers — steady your binoculars.

A rare snowy owl invasion is gripping Toronto for the first time since 2013. 

“It’s not every year we get a healthy population of snowy owls,” said Lee Earl, program specialist for Don River Valley Park. 

Earl leads “owl prowls” in the east-end park and