Typical swarm locations
Hounslow collectors attend swarms in the river willows and scrubby meadow-edge scrub of the Crane Valley Regional Park, in the lime and horse chestnut avenues of the older Hounslow and Isleworth residential streets, in the garden hedges and apple trees of the surviving Heston and Cranford smallholdings, and in the chimney stacks and fascia voids of the between-the-wars semi-detached properties behind Bath Road.