one of the best things to help air flow in your bird room is a whirly bird (vent) when it is cold or night time to stop draught you can close of the air flow make a sliding draw to block the air flow , one of the main things is to put bird wire over the hole that you have cut out so the birds can not escape out and have windows that open aswell this help with light too

Thanks for the tip!! I am in the process of doing a bird room and I like the whirly bird idea - especially blocking it off at night

Just gotta remember to block of off though..

Best to put avairy wire over the hole :hap: