A massive wildfire burning in Canada's largest national park is sparking concern for an endangered species of bird once pushed to the brink of extinction. The flames threaten a crucial nesting ground of the majestic whooping crane, putting renewed pressure on a population that has spent decades clawing its way back from near disappearance.
The fire is burning in a vast and remote landscape. Burn scars now zigzag through Wood Buffalo National Park in Canada's north, an area described as pretty prime whooping crane habitat. It is here, in one of the country's wildest corners, that the birds return to breed, making the park central to the survival of the species.
The scale of the blaze has grown quickly. A wildfire discovered last month grew to more than 51,000 hectares after it encroached on the nesting grounds of the endangered whooping cranes. The speed and reach of the fire turned what might have been a distant threat into a direct danger to the birds' breeding territory.
For conservationists, the stakes are difficult to overstate. As one put it, even losing one nest to a wildfire like this would be devastating for the whole flock. With so few birds and so concentrated a nesting area, the loss of even a small part of the population can ripple through the entire group and set back years of recovery.
There is, however, some measure of reassurance. While the fire did progress through the nesting ground, that nesting matrix is described as quite a large area, and officials say a good portion of the southern whooping crane habitat has not been touched by the wildfire. That surviving ground offers a degree of protection for the birds that depend on it.
The anxiety surrounding the fire is rooted in the species' fragile history. The whooping crane was nearly extinct in the 1940s, when the population numbered only around 20 birds. From that perilous low point, careful conservation has slowly rebuilt the flock, which is why any threat to its core nesting habitat draws such close attention.
The wildfire underscores the ongoing risk facing the whooping crane even after years of recovery. A species that came within a handful of birds of vanishing altogether remains vulnerable to a single season's flames, a reminder of how precarious its comeback still is and how much rests on protecting the few places where it breeds.