Typical swarm locations
Collectors regularly attend swarms in the lime trees and old boundary walls of the Cathedral precinct and Northernhay Gardens, in the garden trees and allotments of the St Leonard's and Pennsylvania conservation areas, along the sallow and willowherb margins of the Exe estuary at Countess Wear, and in the chimney stacks and eaves of the Victorian and Edwardian terraces of St David's and Heavitree.