Bird engines are mechanisms that may be built with one or more bird statues. Birds, bynature, fly at a rapid pace. If they are left in a confined space with a Red, Green, or Yellow Pressure Plate to fly over, they will press the switch at a rate about 5% faster than a crab engine. This setup is even more useful than the crab engine, for farms and other mechanisms with a cooldown of less than one second.
- Added to the game.