Typical swarm locations
Collectors regularly respond to swarms in the mature trees and lime-stone walled gardens of the High Street and Grimsby Road conservation area, in the old farm outbuildings and barn roofs of the wold-edge villages of Nettleton and Clixby, along the spring-line hedge trees running from Caistor towards North Kelsey, and in the limestone dry-stone boundary walls and garden eaves of the outlying wold farms.