We need to know the answer to this question. What if you plan on getting one for a pet? or plan on becoming a chicken farmer? Worry no longer, we have the answer. Mike Murray, a veterinarian at the Monterey Bay Aquarium in California points out: Birds do not to produce the gas forming bacteria that causes farts. Scientist say they would be surprised if birds couldn't burp. Seeing the mother birds throw up to feed their young. We know there is a urban legend that says "Alka-seltzer causes seagulls to blow up", but we believe that's all it is a urban legend. You can teach a parrot to make farts sounds and you should.

Here is a video of a bird making a fart sounds:

 

Read more here: [Popsci]