US Patent 7409922 Bird feeder

A bird feeder having an upstanding circular housing with a pivotally mounted cover movable between a closed position and a raised position. A latch assembly is included which operates to release the cover for raising and locking the cover in closed position. A feed assembly is provided which includes a perch adjustable laterally of a feed opening. The position of the perch relative opening allows the feeder to restrict the size of the bird being fed.