VIGILANTES are hanging up bat boxes in the latest anti-Ulez ploy.
The £10 wooden homes are attached to camera poles in a bid to stop technicians fixing them.
Disturbing the nocturnal animals can result in jail.
A box from the National Trust was installed in North Cheam, South London, where Ulez protests have raged.
Another with a black bat logo was seen in Chessington, South West London, close to where camera poles were torn down.
Campaigners hailed the new tactic for “positively contributing to London’s biodiversity and ecosystem”.
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Kingsley Hamilton, of the Action Against Unfair Ulez online page, told The Sun: “A number of bat boxes are being put up across London by unknown sources.
“I’m sure whoever is behind it is extremely grateful to TfL for providing the poles to house this protected species.
“Sadiq Khan will not want to be seen to be tampering with their homes after claiming to care so much about protecting the environment.”
The Met Police recorded 220 reports of stolen cameras and 767 being damaged by so-called “blade runners” between April and November last year.
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TfL warned it is an offence to place apparatus on any of its 3,700 cameras enforcing the £12.50 daily charge across the Capital.
A spokesperson said: “We will ensure our activities at these sites comply with relevant legislation.”