That experiment is like saying the Japanese practice of binding the feet of young girls to keep their feet small is an example of evolution. Look I forced this creature to develop abnormally...it's evolution!
^ This is actually a good point.

Evolution aka Darwin's proof was really the same bird just with different size beaks depending on their surroundings and limitations just as the Japanese women evolved to their surroundings just to please their masters aka husbands. I think that post by SnakeBoy was spot on.