“…Importantly, hard beak pecking has the potential to cause severe visual function impairment [ 1 , 2 , 3 , 4 , 5 , 6 ]. Previous reports have shown that various types of birds, such as the sparrow [ 1 ], ostrich [ 2 ], rooster [ 7 ], common myna [ 3 ], crane [ 4 ], domestic hen [ 5 ], bittern [ 6 ], and eagle [ 8 ], can cause human ocular injuries, such as corneal infiltration, defects, cataract, retinal detachment, and endophthalmitis. Pecking damage is dependent on the injured site, bird size, or their attacking habit, as well as the condition of the wounds, and the clinical outcome may sometimes be poor [ 5 ].…”