one of the birdsready to screw whistle and valve too bellowsfound this pipe at hardware store, threaded on both sides, i screwed a bolt on one side after drilling two holes in it so that i may screw it too the valve. also i cut a hole for the whistle and shoved a piece of wood in there to act as the reed. the finished bellows with whistle and valve.closer look at valvesinging bird mechanism installed
