It could slow over the next few days as the temps are going to struggle to pass 10 oC ( 50 oF ) and it's going to be a bit windy they like a calm slightly humid day for swarming , also good for nectar flows . .
Best times are between 10.00 hrs and the heat of the day say 15.30 hrs. So if your a keeper who is on a collecting scheme /list with the fire service , police, council , old folks sheltered housing complexes & schools , get your shopping in in the morning.
I used to charge a minimun of £50 for all swarms collected from these bodies 7 if it required cutting access to them the price went up trememdously ..
The best priced job I negotiated was nearly £1200 inc vat .to remove a massive overwintering wasps nest that filled 15 bin bags of dead wasps & nest material . The room below had to have scaffolding set up and loads of planks &thick ply boards to support the ceiling as the wasps had eaten the wooden joists away . It has been supposedly " chemically killed " twice by Rentokill " and a lot of times by the council who owned the property .