Emotional Support Animals (ESAs) can be any domesticated animal, not just dogs and cats, but must be manageable in public and not a nuisance. Dogs and cats are the most popular choices, but rabbits, lizards, birds, fish, guinea pigs, rats, and livestock can also be ESAs.
Dogs and Cats: The most common ESAs, valued for their strong bonding and companionship.
Birds: Such as parakeets or parrots, which can offer soothing interaction through sounds and presence.
Small Mammals: Including rabbits, guinea pigs, hamsters, rats, mice, and ferrets.
Other Animals: Miniature pigs, hedgehogs, miniature horses, and certain reptiles (e.g., bearded dragons) have been recognized in some cases, though housing providers may scrutinize less common species more closely.
In Summary
If you have a diagnosed mental or emotional disability that substantially limits major life activities, a domesticated animal that provides comfort through its presence can qualify as an ESA—with a valid letter from a licensed professional and proper behavior.