A flock of birds fly over sandhill cranes in a pond near Newark, Neb., Thursday, March 15, 2018. An extensive new report from the Audubon Society says climate change threatens extinction for two-thirds of bird species across North America — and Canada will be especially hard hit. THE CANADIAN PRESS/AP/Nati Harnik

Climate change threatens extinction for most birds, especially in Canada: report

All 16 Arctic species would be at high risk, including iconic birds such as the snowy owl

Climate change threatens extinction for two-thirds of bird species across North America, including almost all of those filling the forests and tundra of northern Canada, says an extensive report.

“More than we thought are vulnerable,” said Jeff Wells of the Audubon Society, which crunched 140 million records from 70 data sources on 604 different species for the study released Thursday.

“It’s yet another of these wake-up calls.”

The study mapped information onto projections of how climate change will alter the habitats on which birds depend. If global average temperatures go up by three degrees — which is what is expected under the measures of the Paris climate agreement — the results are dire.

Audubon concludes that 389 bird species, or 64 per cent, would be at least moderately threatened with extinction by 2100.

The news for Canada is much worse.

All 16 Arctic species would be at high risk, including iconic birds such as the snowy owl and the Arctic tern. So would nearly all — 98 per cent — of the species that perch in the boreal forest, which stretches across the northern reaches of almost every Canadian province. They would include everything from tiny songbirds to big raptors.

Some birds would be able to adapt by following their preferred habitat north as the continent warms. Crows and magpies are already appearing in northern latitudes where before they were rarely seen.

The report says some places could even see an increase of bird species, although at lower numbers. More species could end up breeding in the tundra, and much of the rest of Canada could see an increased variety of birds fleeing southern habitats that had become too warm.

Northern birds would have nowhere left to go, said Wells.

“There’s not that much space for them to move into. There’s also the issue of whether the kinds of forest and wetland habitat they prefer can even track northward.”

The threats described by the Audubon Society may already be taking effect. Two recent studies have found numbers for most bird species are dramatically dropping. One report concluded overall numbers have dropped by three billion since 1970 — about a 30 per cent drop.

But the threats are not inevitable, says the most-recent study.

Models show that if governments were able to enact measures to keep warming at 1.5 degrees, the number of species threatened with extinction would drop to just under half. And the number of species in the highly threatened category would fall by three-quarters.

Also important will be conservation measures such as habitat restoration and landscape conservation over large areas.

“Protecting large areas of northern habitat is going to be part of the most crucial things we can do to maintain large, resilient populations of birds and other wildlife,” Wells said.

Scientists say that, in addition to eating bugs and pollinating plants, birds are an important indicator species.

“Birds are living off the same Earth that we are,” Wells said. “If the birds are being impacted this way, the humans are going to be impacted in the same way.”

VIDEO: Climate demonstrators shut down Canadian bridges as part of global action

Bob Weber, The Canadian Press


Like us on Facebook and follow us on Twitter.

Just Posted

GOWN UP to raise $10m for Surrey Memorial Hospital upgrades

The money will be used to upgrade 10 operating rooms, buy cutting-edge equipment and recruit more top-notch surgeons

Lord Tweedsmuir downs Seaquam in high school football

The Panthers improve to 3-1, move into a tie for second in the Eastern Conference

Canucks’ Diwali Night game gives Surrey’s Heer the thrill of DJ-ing for his favourite team

‘It should be a good game with (Alexander) Ovechkin in town’ on Oct. 25, says Jovan Heer

UPDATED: British couple vacationing in Vancouver detained in US after ‘accidentally’ crossing border

CBP claims individuals were denied travel authorization, crossing was deliberate

‘A monumental step’: Surrey Food Bank finds new, much larger home in Newton

The charity is expected to make the move next summer

VIDEO: #MeToo leader launches new hashtag to mobilize U.S. voters

Tarana Burke hopes to prompt moderators to ask about sexual violence at next debate

Potent power play paces Canucks to 5-1 win over Detroit

Miller nets a pair as Vancouver wins third straight

After losing two baby boys, B.C. parents hope to cut through the taboo of infant death

Oct. 15 is Pregnancy and Infant Loss Awareness Day in B.C.

Cheating husband sues mistress for gifted ring after wife learns about affair

The husband gave his mistress $1,000 to buy herself a ring in December 2017

B.C. massage therapist reprimanded, fined for exposing patients’ breasts

Registered massage therapist admits professional misconduct

B.C. boosts legal aid funding in new payment contract

‘Duty counsel’ service restored in some communities, David Eby says

Rugby Canada helps recovery efforts in Japan after typhoon cancels final match

Canadian players wanted to “give back in whatever small way they could”

$100,000 reward for B.C. gangster extended to United States

Police belive fugitive Conor D’Monte may be in the Los Angeles area

Emily Carr University closed Sunday after fire causes some damage

The school is working with Vancouver police to assist their investigation into the fire

Most Read