"The Birdman" performs his amazing act on the streets of Lisbon

(CBS)- At first glance Claudio Montuori appears to be just a crazy man on the street making random noises. But Montuori is used to skeptics doubting his performance, and doesn't care because once you see the "Birdman" you will be amazed.  Take a look and listen.

Filmed in Lisbon, Portugal, Montuori definitely looks a bit insane with his bird-esque hat, wild hair, tattered clothes, and colorful box of sounds. But combine all of the individual parts of his show and you get a remarkable performance sure to leave you scratching your head and chirping for more.