Typical swarm locations
Collectors attend swarms along the River Ely riverside path and its elder and bramble scrub, on the garden walls and chimney pots of the interwar residential streets off Grand Avenue and Wilson Road, in the hawthorn and sycamore hedgerows on the farmland edge towards St Fagans, in the allotment sites near Cowbridge Road West, and in the ornamental garden borders of the wider residential avenues.