Not quite Springhill Lane (which doesn’t have a river!) but the patch of Irwell at Cloughfold which I surveyed last summer apparently came 78th out of 122 sites in the North West for Daubenton’s bats, and 844th out of 1297 in the UK. On both indices it seems to lie somewhere about the 65th centile (higher number, fewer bats!), suggesting that the North West as a whole is typical of the UK as a whole for Daubenton’s.

It was strangely surreal grubbing about at the river edge at 11pm with a torch and a bat detector. A few dog walkers did look rather strangely...