With the weather finally warming up after a cool spell, as expected, calls start to come in. One surprised me on Friday – a swarm in a bird box. usually these are not swarms at all but Bombus Hypnorum – the tree bumblebee that likes to use them. This one WAS the exception. The bird box was a little owl box so quite large in the bird box world – certainly a lot bigger than the usual blue-tit box we love to put up in our gardens – and the swarm arrived en mass.
Incidentally we put up 4 boxes in our garden last autumn and 3 of them are occupied which is pretty good; with the parents busily flying in with food from dawn ’till dusk.
More about swarms here:- http://www.norfolkbee.co.uk/swarms