Typical swarm locations
Collectors attend swarms on the garden walls and eaves of the terraced streets above the station, along the Rhymney River bank and its bramble and elder margins at Gilfach Fargoed, in the bramble and gorse scrub on the former colliery reclamation ground, in the valley-side hawthorn and blackthorn scrub, and in the railway cutting bramble and willowherb along the Rhymney Railway.