Typical swarm locations
Collectors attend swarms on the chimney pots and eaves of the Victorian terraces near Thornaby-on-Tees railway station, in the riverside hawthorn and elder scrub along the Tees between Thornaby Crossing and Stockton Riverside, in the allotment gardens on the western edge toward Ingleby Barwick, and on the scrub margins of the former Thornaby Aerodrome site off Bader Avenue.