Typical swarm locations
East Park lime avenue and ornamental lake hawthorn and elder margins are prime swarm sites in May and June. Holderness Road Victorian terrace chimney stacks and roof voids in the inner Holderness streets are regularly reported to Beverley BKA. Oilseed rape field margins on the Bilton and Hedon Road approaches beyond the A1033 Ring Road attract prime swarms from late April. Field-boundary hawthorn on the Holderness plain lanes toward Bilton produces spring swarms in late April and early May.