I found the following information online about roosts. What type of roosts do you all have for your peafowl?
http://www.peafowl.org/ARTICLES/14/
"A flat roost such as a 2"X 4" board should be used rather than a round roost. If a round roost is used, there is a chance that the birds' toes will suffer frostbite in extremely cold weather because the toes are exposed while gripping the roost. A flat roost allows the bird to sit on its feet without having to grip the roost which prevents frostbite from occurring."
http://www.peafowl.org/ARTICLES/14/
"A flat roost such as a 2"X 4" board should be used rather than a round roost. If a round roost is used, there is a chance that the birds' toes will suffer frostbite in extremely cold weather because the toes are exposed while gripping the roost. A flat roost allows the bird to sit on its feet without having to grip the roost which prevents frostbite from occurring."