Smudge, the 27-year-old cockatoo displayed incredible tricks showing off his smartness. The bird seated on his perch sorted different objects into two bowls according to their shape, size, and color. Smudge began by sorting red and blue balls, followed by separating differently shaped nails. He could remove different-sized rings with his beak easily, transferring the bigger ones into another bowl. Smudge then moved on to separate gold and silver-colored rings, ending the trick by doing a spin around the perch.