Typical swarm locations
Collectors regularly handle swarms in the mature trees and garden hedges of the High Street conservation area, in the old glasshouse and market-garden plots on the outskirts of the town, along the dyke-bank hawthorn scrub on the drove roads east of Holbeach St Marks and Holbeach Drove, and in the brick outbuildings and packhouse roofs of the horticultural holdings on the fen edge.