By CBC News Ottawa, December 17, 2017
Ramin Izadpanah has been taking photos of snowy owls in and around the Ottawa area every winter since 2012, but this winter he and other wildlife photographers are in for a treat.
An unprecedented number of the mighty birds are migrating south, spurring the International Union for Conservation of Nature to point to climate change as a threat to the snowy owl.
The agency has raised the snowy owl from "least concern" to "vulnerable" on its species "red list."http://www.cbc.ca/news/canada/ottawa/invasion-snowy-owls-treat-ottawa-birdwatchers-1.4452872