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Hyning scout wood case study

Where

Hyning Scout Wood, Lancashire

Who Woodland Trust
Management Type

Safety work on individual tree

When 2008
Bat species affected Unknown species roosting in crack of sweet chestnut tree
Activity involved

An annual Zone A tree safety inspection at Hyning Scout Wood indicated the need to reduce a Sweet Chestnut tree, in decline, to a standing stump. On inspection by the contractors they reported to the site manager that the cavity smelt musky and had deposits typical of bats present at its base.  They were told not to work on the tree as planned.  Site manager called in a local bat expert.  They confirmed that the cavity has been used as a roost site but was not in use at present.  A method of working was then agreed with the bat expert and tree safety consultants.

How was that activity modified

No works were carried out on the tree until April. This minimized the risk of disturbing bats whilst in hibernation.

On the evening prior to works commencing, it was advised that an emergence or dusk survey be carried out at the site in order to confirm that bats were absent. If bats were absent, work could commence the following day.

If bats had been found to be using the tree, work would be suspended for two weeks when a further emergence or dusk survey would be carried out. This pattern could be repeated until bats are absent and then work must commence immediately following the dusk survey.

The work was carried out with care and advice given to remove as necessary the canopy, upper branches and parts of the trunk to no nearer than within eight to ten feet above the split in the trunk. 

What were the results

The work was carried out but undertaken in such a way that the roost was able to be retained.

Photos

Hyning scout wood (Woodland Trust)

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