Birdhouse transforming device for cavernicolous birds, has internal shutter closing flight hole when device is in feeder position and opening flight hole when device is in bird house position, and wood sleeper for stopping grains

摘要

The device has an open top fixed on one of two sides of the device using a piano type hinge. An internal shutter (5) closes a flight hole when the device is in feeder position and opens the flight hole when the device is in bird house position. A tilt-up door (8) is in vertical position for the birdhouse and in inclined position for the feeder. A wood sleeper is fixed in front of a floor for ensuring the stopping of grains.