I have an 8 x 10 portable building with 2 small windows and 2 small wall vents that we converted into our Guinea House. I have never kept any type of poultry, so everything is new to me. I have them in a wire brooder inside their house now (they are almost 3 weeks old). I no longer use the heat lamp (it's 95 in the daytime and 79 at night). Inside the building is a few degrees warmer - I have a fan inside for daytime use. My plan is to turn them out inside the building at some point for their nursery, but the door to the building must be open during the day because of the heat. At what size do snakes not try and eat them? I already had a snake get inside their first cage and eat/kill some. I will have a half-wall barricade inside the building for them so they can't get out the door but no top. Any suggestions will be appreciated.