Typical swarm locations
Collectors regularly attend swarms in the old sandstone and limestone properties around the castle mound conservation area and Church Street, along the Don riverside willows and watermeadow at Sprotbrough Flash below the gorge, on the limestone grassland and scrub margins of Conisbrough Pasture and Levitt Hagg, and in the chimney stacks and eaves of the older terraced properties on Sheffield Road and Doncaster Road.