Audio recordings of echolocation calls indicate the tiny canyon bat is extending its range into B.C. (Photo by Maura Thoenes, iNaturalist.org)

New bat moving into B.C.

Canyon bat recorded at Skaha Bluffs near Penticton

It hasn’t been seen yet, but new species of bat has been heard making its way into the Okanagan, joining the roughly 14 species of bats already in the province.

Writing in the Okanagan Bats newsletter, biologist Mike Sarell said the echolocation calls of the canyon bat have been recorded at multiple locations in the Skaha Bluffs area.

“Early spring recordings suggest that they may even be hibernating in the park,” he wrote. “It’s weak flight makes it more apt to live in canyons where it is protected from strong wind.”

An example of Canyon Bat echolocation call sequence from Skaha Bluffs near Penticton. Courtesy Okanagan Community Bat Program.

The canyon bat is a very small bat, found in rugged deserts in western North America. Its call was recorded once before in B.C. several years ago, west of Osoyoos. But as this was a single incident, the B.C. Bat Conservation Centre considered it accidental.

Biologist Orville Dyer is also cautious about these latest recordings, noting that the audio recordings are still a little uncertain.

“If you get the right one and it is nice and clean, you can separate bat species with fair confidence, not 100 per cent confidence,” said Dyer. “We will wait for a capture in hand, or some genetic evidence — sometimes we can analyze bat guano — before we actually confirm that it is truly here.”

Dyer said it is possible the canyon bat has been living in B.C. for some time, just in numbers too low to be detected.

A new session of bat counts began July 11, running to Aug. 5, with bat watchers through B.C. being asked to do at least two counts at roosts they are observing.

Margaret Holm, with the Okanagan Community Bat Program, explains that a count earlier this year focused on adult bats, but this one is on the maternal colonies. Female bats give birth to a single pup, and now are starting to teach them to fly.

Related: Keeping track of bats in the Okanagan

“This is the second count period. If it is a good year, you are probably counting twice as many bats at the same location as you did six weeks ago,” said Holm. “We’ve had some hot weather, but fairly good weather in general, so I would think that it’s been a good year.”

Holm added bats are specific about the time they come out, which is at twilight, about 9:15 p.m. at this time of year.

“They will all come out within 20 minutes to half an hour of each other,” said Holm. “I know the Okanagan Bat Program really appreciates people helping in a consistent way. For instance, making a commitment to count once or twice during the summer and send in their results.“

With the exit hole from the colony located, she explained, it’s as easy as setting up a lawn chair and counting the bats as they emerge. Some colonies, like ones in barns, might have more than one exit, making a count more complicated.

“But you only count them once as they exit. You don’t count the ones that are flying around,” said Holm. “It is kind of a neat thing for people to do. Some people have told me their bats come out from under their dock.”

Audio counts are also done, conducted by specialized teams. Dyer said using the audio sensor reveals a whole new world of bats.

“It is a really something to go outside with a bat detector. You can see some bats, but with the detector, you can hear them and they are way more numerous than you can imagine,” said Dyer. “You can look up and you won’t see them, but you can hear them on the detector.”

Related: Researchers eavesdropping on Okanagan bats


Steve Kidd
Senior reporter, Penticton Western News
Email me or message me on Facebook
Follow us on Facebook | Twitter | Instagram

Just Posted

Drivesmart column: Taking cyclists seriously

This officer must have missed some important reading in their copy of the Motor Vehicle Act.

Cowichan Therapeutic Riding Association’s $20K grant will help kids keep riding

Approximately 85-90 per cent of CTRA’s clients are children under the age of 18.

Robert Barron column: Elk poachers should be punished

I could only imagine the fate of these bozos if those east coast hunters ever got hold of them.

Cowichan Capitals fall to last in Island Division

Battle for fourth place goes to Alberni Valley

VIDEO: Christmas arrives in Cowichan with Celtic Rhythms, Summit Dance show

Bright costumes, seasonal music, happy faces: it was all there for everyone to enjoy

Coming up in Cowichan: From a kitchen party to a live nativity play

Stroke Recovery branch hosting an Open House Nova Scotia Kitchen Party The… Continue reading

Boeser scores 3, Pettersson has 5 points as Canucks hammer Blues

Vancouver picks up impressive 6-1 win in St. Louis

B.C. police stop drunk driver who offered up burger instead of ID

Roadblock checks over the weekend found at least two other impaired drivers

In Canada, the term ‘nationalism’ doesn’t seem to have a bad rap. Here’s why

Data suggest that Canadians don’t see the concept of nationalism the way people do in the United States

Small quake recorded west of Vancouver Island

No injuries or tsunami warning after 5.4 rumble felt some 400 kilometres from Victoria

B.C. suspends Chinese portion of Asian forestry trade mission due to Huawei arrest

Huawei’s chief financial officer Meng Wanzhou was detained at the request of U.S. in Vancouver

Canadians spent $1.7 billion dollars online in December 2017

Online retail sales accounted for 3.4 per cent of total retail sales

2-year investigations nets $900,000 in refunds for payday loan customers

Consumer Protection BC says selling practices were ‘aggressive and deceptive’

Most Read