Typical swarm locations
Swarms in Chorley settle on the hawthorn hedgerows and elder scrub along the canal towpath, in the mature garden trees of the older Victorian terraces around Market Street and Halliwell Street, and on the sandstone walls and chimney pots of the town-centre conservation area. The allotment gardens on the Whittle Springs and Bolton Road fringes are also a regular source of calls in late May and June.