The Bird Statue is found underground, and will summon up to three birds at once when Wired to a Trigger. Birds do not drop anything, making this statue ineffective for farming, except in the case of a bird engine. Bird engines are created by enclosing birds in a small area cluttered with Pressure Plates. It can also be used for a ranged practice, allowing for an infinite source of weak targets.
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.