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You can contact Stuart Spray Wildlife Consultant at the following addresses:

England: 9 Basford Road, Manchester M16 0FT

Scotland: SSWC. Laundry Cottage, Clarencefield, Dumfries, DG1 4NA

Phone: 07894 081164

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Using infra-red cameras to survey for bat roosts

We have been using infra-red cameras to survey for bat roosts for the past six years and have found them invaluable when surveying trees, viaducts or buildings for bat roosts.

The first two films (below) show examples of dawn bat surveys conducted using a Cannon XF100 with infra-red spot lights. The infra-red capability means we are able to accurately pin point where the bat roosts are located.

The third film is footage of the Leisler’s maternity roost at Culzean Castle in south Ayrshire which was discovered during the  Scottish Leisler’s Bat Project.

The roost was not originally spotted from the ground despite being large and obvious when the tree was climbed. Note the bat droppings at the base of the cavity at the start of the film.

The film shows how useful camcorders are for accurately recording the number of bats leaving a roost. The use of infra-red or thermal imaging means the counts can be accurate even in dim light or the pitch dark.

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