Hello! I am from Ohio and have a therapy rooster. His name is Shouty and we go around to many camps and events in the area together. He was hatched with a twisted beak and has always been a house chicken. Because of this, he thinks of himself AS a human and loves going to new places.
If you are looking to make certification "official", I would check out the Delta Society (Now called Pet Partners) to do that. I also have a friend of mine that runs a therapy RABBIT organization, F5RS Bunnies in Baskets. She would know more about certifying "unconventional" animals so to say. She has helped me a lot with Shouty.
One thing I would highly recommend is purchasing a "Hen Holster". It is the chicken equivalent to a flight suit. Most organizations require animals to be house broken, but because that is hard to do with birds, such devices are allowed.
Good Luck!
Shouty out on the job:
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