Dave A
@batworker.bsky.social
Bat ecologist working in the North of England. Ex Museum Curator. Researching use of caves, mines and lime kilns by bats in the Forest of Bowland and Yorkshire Dales National Park.
The frogs have decided spring is coming…
January 17, 2026 at 7:57 AM
The frogs have decided spring is coming…
Love bats 🦇 Nietoperek census 2026 is a mind blowing experience. So honoured to have the chance to take part in the weekend.
January 11, 2026 at 12:10 AM
Love bats 🦇 Nietoperek census 2026 is a mind blowing experience. So honoured to have the chance to take part in the weekend.
Finally cold enough for the Brown Long Eared bats to enter the hibernation site. If it warms up they’ll likely leave again…
January 6, 2026 at 10:25 PM
Finally cold enough for the Brown Long Eared bats to enter the hibernation site. If it warms up they’ll likely leave again…
On the eve of a new year of research into how bats 🦇 use swarming sites. We’ve got the promise of funding to open up new avenues of investigation; always more questions that need answering…
December 31, 2025 at 10:59 AM
On the eve of a new year of research into how bats 🦇 use swarming sites. We’ve got the promise of funding to open up new avenues of investigation; always more questions that need answering…
Time off means time to test out extending the runtime on a PippyG detector…
December 22, 2025 at 3:25 PM
Time off means time to test out extending the runtime on a PippyG detector…
Still miss getting post like this 🦇
December 16, 2025 at 2:22 PM
Still miss getting post like this 🦇
When your 🦇 bat research partner delivers an early Christmas present…
December 15, 2025 at 6:24 PM
When your 🦇 bat research partner delivers an early Christmas present…
And this week a second ringed bat has arrived.
November 28, 2025 at 3:15 PM
And this week a second ringed bat has arrived.
Fancy having a leadmine in your back garden. Glad we’ve been allowed access to monitor the bats 🦇 hibernating in it…
November 27, 2025 at 5:58 PM
Fancy having a leadmine in your back garden. Glad we’ve been allowed access to monitor the bats 🦇 hibernating in it…
Massive influx of Natterer’s bats at valley level marks the official start of hibernation season (last week they were still swarming). And the cherry on top was the return of Z0266, a bat ringed as an adult in 2005. That makes four 21+ year old 🦇 still turning up ( @johnaltringham.bsky.social )
November 21, 2025 at 2:15 PM
Massive influx of Natterer’s bats at valley level marks the official start of hibernation season (last week they were still swarming). And the cherry on top was the return of Z0266, a bat ringed as an adult in 2005. That makes four 21+ year old 🦇 still turning up ( @johnaltringham.bsky.social )
‘Winter arrives on the wings of a Brown Long Eared bat’ While the Brandt’s bats 🦇 have been underground since early September, it always takes a sub zero snap to push the Long Eareds into hibernation. #bats #chiroptera #research #conservation #ecology
November 20, 2025 at 1:46 PM
‘Winter arrives on the wings of a Brown Long Eared bat’ While the Brandt’s bats 🦇 have been underground since early September, it always takes a sub zero snap to push the Long Eareds into hibernation. #bats #chiroptera #research #conservation #ecology
This has to be one of the most photogenic hibernation sites. Mineral rich, glittering and full of Brandt’s bats 🦇
November 13, 2025 at 3:13 PM
This has to be one of the most photogenic hibernation sites. Mineral rich, glittering and full of Brandt’s bats 🦇
Last week we had predominately Brown Long Eared bats swarming, this week Natterer’s 🦇 Male and female Long Eared’s caught inside the swarming site, but only male Natterer’s so far and mainly young of year.
November 8, 2025 at 10:50 AM
Last week we had predominately Brown Long Eared bats swarming, this week Natterer’s 🦇 Male and female Long Eared’s caught inside the swarming site, but only male Natterer’s so far and mainly young of year.
Then we found the same exact location recorded in November 2023 and 2024 too. More evidence of crevice fidelity in hibernating bats
October 23, 2025 at 2:58 PM
Then we found the same exact location recorded in November 2023 and 2024 too. More evidence of crevice fidelity in hibernating bats
Bat torpid since before 5th September, which was the first surprise 🦇
October 23, 2025 at 2:53 PM
Bat torpid since before 5th September, which was the first surprise 🦇
Data loggers collected from our 🦇 swarming study site, now to download and see if there’s a correlation between bat position and microclimate.
October 21, 2025 at 1:57 PM
Data loggers collected from our 🦇 swarming study site, now to download and see if there’s a correlation between bat position and microclimate.
Highlight of this Slovenian trip so far has been listening to these mating Greater/Lesser Mouse Eared bats 🦇 (Bats 30+ metres above us, even a 200mm lens struggled). #bats #chiroptera
September 28, 2025 at 1:51 PM
Highlight of this Slovenian trip so far has been listening to these mating Greater/Lesser Mouse Eared bats 🦇 (Bats 30+ metres above us, even a 200mm lens struggled). #bats #chiroptera
Lovely example of bat 🦇mitigation here in Slovenia. Living with bats doesn’t need to be difficult.
September 20, 2025 at 3:11 PM
Lovely example of bat 🦇mitigation here in Slovenia. Living with bats doesn’t need to be difficult.
Brandt’s bat 🦇 in deep torpor, covered in condensation wasn’t on the bingo card for today’s swarming site check.
September 5, 2025 at 1:11 PM
Brandt’s bat 🦇 in deep torpor, covered in condensation wasn’t on the bingo card for today’s swarming site check.
Young of year male Brown Long Eared bat 🦇 resident in the swarming site.
August 16, 2025 at 8:03 AM
Young of year male Brown Long Eared bat 🦇 resident in the swarming site.
Always good to get DNA confirmation of our 🦇 field ID skills.
August 13, 2025 at 4:24 PM
Always good to get DNA confirmation of our 🦇 field ID skills.