I know some people keep chickens in their homes as pets, but seems to me that do to their nature to poop at will and are not trainable (I don't think ) to be a hassel to constantly find little surprises all over the house that need to be cleaned up.
Also the fact that scratching and peckign is also part of their nature a lot of furnitire and other items will quickly get ruined. I live in my home my girls live as neighbors in their home in the back yard they let me know when they want some up closr and personal time so I go visit them with treats.
If a chicken or two in your house is what you like and want who am I to tell you no! Its just not for me.