I don't know, for me keeping a big parrot in those small cages is way more cruel than keeping a chicken in a nice sized indoor cage. Those parrots want to FLY. Not sit on a perch all day doing nothing. My chickens even though confined, have a sand box, different levels, room to move and stretch...
I beg to differ, I have indoor chickens. Yes, they do produce dust, and lots of it. And yes, I do have an air cleaner in the room the chickens are in, however, they are in a 2'x8' handmade cage. They are two bantam chickens, although I did have one lf chicken previously. They have plenty of room...