An adult male yellow-breasted chat is shown in this undatd photograph on lands protected in collaboration between the En’owkin Centre and Penticton Indian Band with support through ECCC. The rescue from near extinction for a little yellow bird hinges on the wild rose in British Columbia’s Okanagan Valley, a researcher says. THE CANADIAN PRESS/HO, A. Michael Bezener/ En’owkin Centre 2020 *MANDATORY CREDIT*

An adult male yellow-breasted chat is shown in this undatd photograph on lands protected in collaboration between the En’owkin Centre and Penticton Indian Band with support through ECCC. The rescue from near extinction for a little yellow bird hinges on the wild rose in British Columbia’s Okanagan Valley, a researcher says. THE CANADIAN PRESS/HO, A. Michael Bezener/ En’owkin Centre 2020 *MANDATORY CREDIT*

Rare yellow birds need wild roses to survive in British Columbia: researcher

The importance of local wild roses emerged over a nearly 20-year experiment

A little yellow bird’s rescue from the brink of extinction in British Columbia hinges on an oft-overlooked wild flower in the province’s Okanagan region, according to one Canadian government researcher.

The importance of local wild roses emerged over a nearly 20-year experiment concentrating on the yellow-breasted chat, a tiny bird whose characteristics and precarious status have preoccupied scientists for decades.

At the beginning of the 21st century, the population at one breeding site on the grounds of the Okanagan Valley’s En’owkin Centre stood at just one pair.

Today it’s grown to roughly 22 pairs, a phenomenon Environment and Climate Change Canada researcher Christine Bishop largely attributes to the rejuvenation of wild roses in the area.

Bishop said human appetite for shoreline development, combined with livestock grazing, led to the depletion of the prickly wild rose bushes she described as providing the birds’ ideal nesting conditions.

“They nest in forests along shorelines. And that’s one of the key reasons why population declined,” she said. “Everybody wants to develop or live near waterfront. … It’s definitely a habitat that’s under threat continually.”

Bishop said yellow chat populations exist beyond the borders of the En’owkin centre, but have been all but eradicated in Ontario and go largely unmonitored in the Prairies. Bishop estimated B.C.’s total yellow chat population at about 250 pairs.

Environment Canada teamed up with the En’owkin Centre — an Indigenous post-secondary institution — and the Nature Trust of B.C. to try and revitalize chat populations in the southern Okanagan Valley.

They fenced off about 70 kilometres along a stream, resulting in 455 protected hectares.

The results allowed previously trampled wild rose plants to regrow, Bishop said, linking their regeneration to the spike in local yellow chat pairs.

“This is a success story,” she said.

Bishop said the birds’ preferred habitat in B.C. is wild rose bushes along shorelines with willow and cottonwood forests.

Sometimes they nest in habitats with poison ivy as long as it is intermingled in a thicket of wild rose, she added, noting humans don’t often recognize such environments for the vital wildlife habitats they are.

“A lot of times people see these sites with a young willow, cottonwood, and a thicket of rose and other shrubs and they just don’t think of it as a forest because they don’t see it as big huge ponderosa pines and so on,” she said. “And they don’t understand that this type of thicket … is not only used by chats, but many other birds as well as wildlife as cover and food sources.”

Bishop said chats have provided no end of scientific puzzles over the years, a fact even reflected in the species name.

Chats produce about 40 distinctive sounds, including imitations of other bird calls and sounds Bishop likens to car horns, but can’t be classified as songbirds because they don’t sing.

She said their vibrant yellow hue prompted researchers to categorize them as warblers for decades, but that classification was undercut by their roughly 25-gram weight, more than twice the size of an average bird of that type.

“In 2017, they actually created its own family. And it’s the only species in that family, because it cannot be classified,” she said.

Chats also boast ultraviolet tints in their plumage, which are invisible to the human eye but can help male birds attract mates.

The males are also known to put on a distinctive display when allowed to enjoy their preferred shoreline forest habitats, she said.

“They dangle their feet and then they make this sort of honking sound,” Bishop said with a laugh.

“And they’re flapping slowly … dangling their feet and the females down below are watching this and judging his performance.”

Researchers are also concerned about the effects of climate change on the chat’s habitat.

The watercourses will change into grasslands if it gets too dry in the Okanagan, making it unsuitable for these birds, Bishop said.

They might move to higher elevations if it gets too hot in the valley but that might not be the right habitat for them, she noted.

“So even though we see it as a great success story in terms of expansion of the population so far, the next 20 years will tell us whether or not the population will be able to survive.”

Hina Alam, The Canadian Press

Wildlife

Just Posted

Penticton Overdose Prevention Society co-founders Desiree Franz, Shane Surowski and Stephanie Lines have created the city’s first unsanctioned public overdose prevention site using an old wine-tour bus. The site began operations in June 2021. (Desiree Franz/Facebook)
Volunteers launch Penticton’s first public supervised injection site

2021 is on pace to be the deadliest year for overdoses in Penticton on record

Four golfers from Fairview Mountain Golf Club in Oliver will golf from sunrise to sunset to raise funds for ALS on June 29. (Submitted)
Golfing from sunrise to sunset in Oliver for ALS

Four golfers from Fairview Mountain Golf Club have taken up the challenge June 29

Jann Arden will embark on Canada-wide tour Spring 2022 with a stop in Penticton at the South Okanagan Events Centre on June 13. (Contributed)
Jann Arden coming to Penticton in 2022

The Jann Arden Live! tour has been rescheduled for 2022

A storm watch has been issued for the Okanagan, Kootenays and Columbia regions of B.C. (Calvin Dickson photo)
Another severe thunderstorm watch issued for the Okanagan

Conditions are favourable for thunderstorms that may produce strong wind gusts, hail and heavy rain

The South Okanagan Tim Hortons raised over $4,000 through the three day orange doughnut promotion with 100 per cent of proceeds going to to the Residential School Survivors Society. The owner of these locations matched the amount. (Monique Tamminga Western News)
South Okanagan Tim Hortons raises over $8K for residential school survivors

More than $4,000 worth of doughnuts were purchased over three days

Singer-songwriter Jann Arden is pictured with a draft horse. (Canadian Horse Defence Coalition)
Jann Arden backs petition to stop live horse export

June 14 is the International Day to End Live Export of Animals

(Dave Ogilvie photo)
One injured after being pinned by fallen forklift near Peachland

West Kelowna emergency crews responded to reports of a person stuck under a forklift

Kelowna-Lake Country MLA Norm Letnick, assistant deputy speaker at the B.C. legislature, presides over committee discussions. The legislature is completing its delayed spring session this week, with most MLAs participating by video conference. (Hansard TV)
B.C.’s daily COVID-19 infections dip below 100 over weekend

Only 68 new cases recorded Monday, four additional deaths

B.C. ambulance station in Revelstoke is expected to get a new system called the Scheduled On-Call (SOC) this fall. (Liam Harrap - Revelstoke Review)
B.C. ambulance changes could put Revelstoke residents at risk, warn local paramedics

Paramedics said to expect a substantial increase in ambulance response time starting this fall

This goose family went for a leisurely stroll down Vernon’s Main Street Saturday, April 25. (Dave Deshane photo)
Controversial Vernon goose cull won’t fly this year

Necessary permit procedures held up at a federal level

Mounties cover a burgundy truck with a tent at Buckerfields in West Kelowna on Monday, June 14. The RCMP is investigating after a woman’s body was found inside the truck. (Amandalina Letterio/Capital News)
West Kelowna RCMP investigating suspicious death after body found in truck

Police responded to a truck parked out front of a Main Street business where the body was found

The BC Ferries website went down for a short while Monday morning following a provincial announcement that recreational travel between health authorities can resume Tuesday. (Black Press Media file photo)
BC Ferries’ website crashes in wake of provincial reopening announcement

Website back up now, recreational travel between health regions to resume as of Tuesday

The Kamloops Indian Residential School is photographed using a drone in Kamloops, B.C., Monday, June, 14, 2021. The remains of 215 children were discovered buried near the former school earlier this month. THE CANADIAN PRESS/Jonathan Hayward
Communities grapple with what to do with former residential and day schools

Some tear them down as a tool to help healing, others repurpose them as tools for moving forward

FILE – Provincial health officer Dr. Bonnie Henry talks about B.C.’s plan to restart the province during a press conference at Legislature in Victoria, Tuesday, May 25, 2021. THE CANADIAN PRESS/Chad Hipolito
B.C. watching U.K.’s COVID struggles but don’t think province will see similar pitfalls

Studies show that one dose of vaccine is only 33 per cent effective in preventing B.1.617.2 spread

Most Read