Field Survey
Based on the data received for 2019, 173 volunteers carried out the Field Survey at 199 sites. This survey involves walking a triangular transect within a 1km square and counting noctule, serotine, common pipistrelle and soprano pipistrelle passes.
Noctule and Leisler's bat
Noctules were recorded at 105 sites (53% of sites surveyed). Leisler's bats were recorded at one site in Northern Ireland​ this year
Common pipistrelle
Common pipistrelles were recorded at 181 sites (91% of sites surveyed)
Soprano pipistrelle
Soprano pipistrelles were recorded at 126 sites (63% of sites surveyed)