Last year the bluetits in our birdbox were ousted by the bumblebee, so we were not optimistic this year when a bee appeared again shortly after the bluetit got settled. However this year the birds and the bees seemed to co-habit very happily. The bluetit has successfully hatched 7 babies and has launched them out into the world. The box is now left to the bees on their own.
So good to hear of a successful Blue Tit nest plus peacefully cohabiting with Tree Bumblebees!
2013 photos & vids here
eff37 on Flickr