SURVEYING AT SPOTS
Surveying at Spot 1
If you are carrying out a repeat survey you should make sure that you are standing as close as possible to the place described by the previous surveyor.
If you have a GPS system mark down the grid reference of spot 1 so that anyone can easily find it again.
When you are ready to begin, re-tune your detector to 50kHz and hold it up again at 45 degrees.
Record any pipistrelle activity for exactly 2 minutes (using a stopwatch). Count the number of bat passes for each species.
If you are unsure which pipistrelle (common or soprano) the bat pass is, but you are sure it is a pipistrelle bat, note these down as “unsure”.
(Continue on with the tutorial for more information on identifying pipistrelles)
Again, it may be best to allocate one person to counting passes at the spots, and another to focus on identifying the species. It will help a lot if you can see the bats against a moonlight sky or street lamp.
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