Baby is a 28 year old Severe Macaw who had a trauma when he was very young and plucked his feathers out. At this point the follicles are dead so the feathers won't grow back on his chest. But as you can see he is one happy bird!
The song he is attempting to sing in the beginning is I Left My Heart in San Francisco. He is obviously not going to get very far on American Idol ?
Baby is definitely the clown of the flock ?