Which is more harmful to human body, raising chickens or pigeons?

Raising chickens is harmful. According to the inquiry, I learned from Kang Wang.

1, because the smell of chicken manure will irritate eyes and respiratory mucosa, and the smell of feces is ammonia, which will burn people's skin, eyes and respiratory mucosa. After inhaling too much ammonia, there will be symptoms such as sore throat, dry throat, hoarseness, cough, expectoration, chest tightness and dizziness.

2. Pigeon droppings affect environmental sanitation, and pigeons constantly make noise, which affects the rest of surrounding residents. Pigeons shed their feathers everywhere. The bad smell affects the appearance of the village. The harm to human body is relatively less than raising chickens.