Bird predation of bumblebees

Just added this image to the predation page. I found this lucorum queen way back in May. She was just lying on the pavement, her whole abdominal contents neatly removed. Since then I've seen a few more like this. It seems that some species of tits have learned to rub the sting off and dig out the contents. It must make fairly tasty eating if she has a full honeystomach.