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

The Binche Fishing Derby at Stuart Lake is fast approaching. (Binche Fishing Derby Facebook photo)
Binche shares excitement for upcoming fishing derby

“It’s more than just fishing,” says Dave Birdi

A person receives a COVID-19 vaccine at a vaccination clinic run by Vancouver Coastal Health, in Richmond, B.C., Saturday, April 10, 2021. (THE CANADIAN PRESS/Jonathan Hayward)
Local youth vaccination clinics underway

Pfizer vaccine will be used

Priya Sharma. (Submitted)
Column: Why ultimatums don’t work

By Priya Sharma It is a common misconception that people can choose… Continue reading

Marco Mendicino, Minister of Immigration, Refugees and Citizenship during a press conference in Ottawa on Thursday, May 13, 2021. THE CANADIAN PRESS/Sean Kilpatrick
Canada to welcome 45,000 refugees this year, says immigration minister

Canada plans to increase persons admitted from 23,500 to 45,000 and expedite permanent residency applications

FILE – Most lanes remain closed at the Peace Arch border crossing into the U.S. from Canada, where the shared border has been closed for nonessential travel in an effort to prevent the spread of the coronavirus, Thursday, May 7, 2020, in Blaine, Wash. The restrictions at the border took effect March 21, while allowing trade and other travel deemed essential to continue. (AP Photo/Elaine Thompson)
Feds to issue update on border measures for fully vaccinated Canadians, permanent residents

Border with U.S. to remain closed to most until at least July 21

A portion of the George Road wildfire burns near Lytton, B.C. in this Friday, June 18, 2021 handout photo. THE CANADIAN PRESS/HO, BC Wildfire Service *MANDATORY CREDIT*
Blaze near Lytton spread across steep terrain, says BC Wildfire Service

Fire began Wednesday and is suspected to be human-caused, but remains under investigation

Blair Lebsack, owner of RGE RD restaurant, poses for a portrait in the dining room, in Edmonton, Friday, June 18, 2021. Canadian restaurants are having to find ways to deal with the rising cost of food. THE CANADIAN PRESS/Jason Franson
Canadian restaurateurs grapple with rising food costs, menu prices expected to rise

Restaurants are a low margin industry, so there’s not a lot of room to work in additional costs

RCMP crest. (Black Press Media files)
Fort St. John man arrested after allegedly inviting sexual touching from children

Two children reported the incident to a trusted adult right away

Barbara Violo, pharmacist and owner of The Junction Chemist Pharmacy, draws up a dose behind vials of both Pfizer-BioNTech and Oxford-AstraZeneca COVID-19 vaccines on the counter, in Toronto, Friday, June 18, 2021. An independent vaccine tracker website founded by a University of Saskatchewan student says just over 20 per cent of eligible Canadians — those 12 years old and above — are now fully vaccinated. THE CANADIAN PRESS/Nathan Denette
At least 20% of eligible Canadians fully vaccinated, 75% with one dose: data

Earlier projections for reopening at this milestone didn’t include Delta variant

This undated file photo provided by Ernie Carswell & Partners shows the home featured in the opening and closing scenes of The Brady Bunch in Los Angeles. Do you know the occupation of Mike Brady, the father in this show about a blended family? (Anthony Barcelo/Ernie Carswell & Partners via AP, File)
QUIZ: A celebration of dad on Father’s Day

How much do you know about famous fathers?

Emily Steele holds up a collage of her son, 16-year-old Elijah-Iain Beauregard who was stabbed and killed in June 2019, outside of Kelowna Law Courts on June 18. (Aaron Hemens/Capital News)
Kelowna woman who fatally stabbed teen facing up to 1.5 years of jail time

Her jail sentence would be followed by an additional one to 1.5 years of supervision

Cpl. Scott MacLeod and Police Service Dog Jago. Jago was killed in the line of duty on Thursday, June 17. (RCMP)
Abbotsford police, RCMP grieve 4-year-old service dog killed in line of duty

Jago killed by armed suspect during ‘high-risk’ incident in Alberta

Most Read