Not just chickens: In Ontario, bird flu has killed bald eagles, Canada geese — and juvenile red foxes
The virus has killed 1.7 million poultry birds across Canada as of the start of May
The deadly strain of avian flu ravaging Canada's poultry industry is also felling an unusual number of wild birds and has even jumped to mammals, killing a pair of juvenile foxes near St. Marys Ont., according to wildlife experts.
The Canadian Food Inspection Agency said that as of Thursday, at least 68 poultry farms have been affected by the virus across the country, with an estimated 1.7 million birds killed. The hardest-hit provinces are Alberta, followed by Ontario, each with 23 farms affected.
Wildlife experts say avian influenza typically only affects waterfowl, but this strain, referred to as highly pathogenic avian influenza, or HPAI, has affected a wide array of wild birds, including waterfowl, corvids (such as crows and blue jays), gulls and raptors.
The most surprising casualties to date however, have been a pair of juvenile red foxes that recently died of bird flu near St Marys.
"These foxes had been consuming the uncooked meat from infected animals," said Brian Stevens, a wildlife pathologist at the University of Guelph.
Stevens performs necropsies on wild animals that die under unusual circumstances in Ontario and Nunavut for the Canadian Wildlife Health Cooperative.
Stevens said the HPAI strain was first detected in Ontario wildlife in mid-March and the casualties are mounting. As of the start of May, he had detected the virus 55 times in wild animals, a three- to four-fold increase in what he would typically see in his caseload.
"The variant that's out there now is affecting a lot of wildlife, which is not something we typically see. So the fact that it's jumping [to foxes] and causing severe disease and death of Canada geese and a number of different raptor species is concerning."
That concern is part of the reason some wildlife rescue groups in Ontario — including Salthaven Wildlife Rehabilitation Centre in Mount Brydges — have stopped taking sick or dying birds. Brian Salt, the group's founder, said he doesn't want to risk bringing the highly pathogenic virus into his operation or the operations of his neighbours.
