I am building a pallet coop for my 9 Silkies (and 2 mutt bantams), but as I got going began to wonder about the ventilation... do Silkies need a different amount of ventilation than other chickens? I was planning on having half of the front side of the coop be hardware cloth, as well as having a 4-6" slit opposite this that could be closed in bad weather. Is this too much ventilation for Silkies? Our winters are usually fairly mild, but it does get extremely windy, and I've always heard that Silkies are more vulnerable to the cold. I was also planning on having absolutely no ventilation around the half of the coop that is large nest boxes / broody boxes as I plan to have the girls hatch babies even in the winter. Should I add some ventilation to this side for the summer when it is very hot? Thanks for any advice that you Silkie owners can give me!