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

Neighbours fight a small late-night bush fire with garden hoses and shovels in Cinnabar Valley on June 5. They couldn’t get help from local fire services because the fire was located in an area under B.C. Wildfire Services jurisdiction. (Photo courtesy Muriel Wells)
Nanaimo residents on edge of city limits left to put out bush fire themselves

Cinnabar Valley residents tackle fire with hoses and buckets for two and a half hours

Nanaimo artist Dave Stevens is displaying paintings inspired by arbutus trees and the Millstone River at Nanaimo Harbourfront Library from now until the end of fall. (Josef Jacobson/News Bulletin)
Nanaimo writer and artist’s work goes up at Harbourfront library

Dave Stevens presents work inspired by arbutus trees and the Millstone River

The courthouse in Nanaimo. (News Bulletin file)
Nanaimo man, already in jail, found guilty of sexual abuse of sons

Man previously sentenced for sexual interference involving girl in Nanaimo

Members of the Department of Fisheries and Oceans’ Marine Mammal Response Program rescued an adult humpback what that was entangled in commercial fishing gear in the waters off of Entrance Island on Thursday, June 10. (Photo courtesy Marine Mammal Response Program)
Rescuers free humpback ‘anchored’ down by prawn traps near Nanaimo

Department of Fisheries and Oceans responders spend hours untangling whale

Stuffed toys, many with donations pinned to them, are piled in the Lions Pavilion at Maffeo Sutton Park at a vigil May 31 honouring the 215 Indigenous children whose remains were discovered outside a residential school in Kamloops. (News Bulletin file photo)
Thousands donated to child and family service agency following Nanaimo vigil

Toys and money donated to Kw’umut Lelum child and family services

Members of the Department of Fisheries and Oceans’ Marine Mammal Response Program rescued an adult humpback what that was entangled in commercial fishing gear in the waters off of Entrance Island on Thursday, June 10. (Photo courtesy Marine Mammal Response Program)
Rescuers free humpback ‘anchored’ down by prawn traps near Nanaimo

Department of Fisheries and Oceans responders spend hours untangling whale

57-year-old Kathleen Richardson was discovered deceased in her home Wednesday, June 9, 2021. Her death is considered a homicide and connected to the slain brothers found on a Naramata forest road. (Submitted)
Condolences pour in for Kathy Richardson, Naramata’s 3rd homicide victim in recent weeks

Richardson was well liked in the community, a volunteer firefighter with a home-based salon

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
More than 75% of B.C. adults have 1st dose of COVID vaccine

The federal government has confirmed a boost in the Moderna vaccine will be coming later this month

Airport ground crew offload a plane carrying just under 300,000 doses of the single-shot Johnson & Johnson COVID-19 vaccine which is developed by the Janssen Pharmaceutical Companies at Pearson International Airport during the COVID-19 pandemic in Toronto on Wednesday, April 28, 2021. THE CANADIAN PRESS/Nathan Denette
1st batch of Johnson & Johnson vaccines won’t be released in Canada over quality concerns

The vaccines were quarantined in April before they were distributed to provinces

The rainbow flag flies beside the Canadian flag outside the University of the Fraser Valley’s Chilliwack campus on June 26, 2020. Monday, June 14, 2021 is Flag Day, and also June is Pride Month. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of June 13 to 19

Flag Day, Garbage Man Day, International Panic Day all coming up this week

Terry Mazzei next to a truck after it was struck by lightning, with him inside, on Wednesday afternoon, June 9. He walked away from the incident without injury and the truck sustained only mild damage; a blown front tire and newly broken gas gauge. (Wendy Mazzei photo)
Vancouver Island man walks away unscathed after lightning strike

VIDEO: ‘We like to think that his dad was watching over him’

British Columbia-Yukon Community News Association’s 2021 Ma Murray Awards were handed out during a virtual ceremony on Friday, June 10. (Screen grab)
Black Press Media winners take gold at B.C. and Yukon journalism awards

Publications received nods in dozens of categories

Forty sled dogs were seized by the BC SPCA from a Salmo kennel in February. A recent ruling has decided the dogs won’t be returned. Photo: Gounsil/Flickr
BC Farm Industry Review Board rules against Salmo kennel after 40 sled dogs seized

Spirit of the North Kennels was also ordered to pay BC SPCA $64,000

Frank Phillips receives a visit from his wife Rena at Nanaimo Seniors Village on their 61st wedding anniversary, March 31, 2020. Social visits have been allowed since COVID-19 vaccination has been offered in all care homes. (Nanaimo News Bulletin)
B.C. prepares mandatory vaccination for senior care homes

180 more cases of COVID-19 in B.C. Friday, one more death

Most Read