Examples from literature

• Great swarms of bluebottle flies buzzed lazily in the warm sunshine. 
• The bluebottles buzzed about the wall, and a little old mouse picked over the rubbish among the jam pots. 
• The office was very still, except for two bluebottle flies butting against the ceiling and buzzing up and down the window-panes. 
• There was one big bluebottle that had got stuck there on his back with his wings in the sticky stuff. 
• This fly is very like our British bluebottle, with a somewhat greener head, and a body entirely yellow.