I was thinking of getting 3 chickens which will be our class pets for our preschool. I will be cleaning the coop every weekend (picking up poop). I'm so excited that I changed my mind and will be getting 4 instead. Now I'm thinking I might as well make it 5! Is there alot of difference going from 3 to 4 or 5 chickens as far as poop? and/or other maintenance? Should I stick to my original number of 3 chickens? Please give me your advise and suggestions. Thanks!