Hi everyone. We rescued 4 hens from a not so good chicken keeper and now three of my chickens have developed a cough. Did we do the wrong thing rescuing some older hens? We have a mix of breeds and they do get along very well. Or could it be the straw we use? I know they all need ventilation, but if I make more ventilation they could freeze. The nights have been dipping into the lower teens. I do have a heat lamp installed. I'm learning as I go and i do spend a lot of time researching info. Everyone says my hens are really spoiled. But who doesn't want happy comfy hens? We are probably the best animal lovers on the block. The co-op stores around don't have much info about chickens unless your buying them in the spring. Farmers around all have their own opinions. I find myself coming to BYC for all my info. This is by far the best place to start and end the search. I have learned their behaviors and can tell when they are sad. They let us pet them, we talk to them all the time. Whoever says chickens are dumb needs to spend more time with them. They do talk back and show you what they want. We plan on getting new chicks in the spring and we dont want jeopardize the flock. Any tricks and hints will be much appreciated. Thank you all... 3 dogs, Sasha the Shepard mix, Lilly the rescued pit bull from a dumpster, Jack the min-pin, 3 cats. asphalt, rescued from an abandoned parking lot, Cleo, and socks. 1 australorp rooster Marco Pollo, 1 australorp hen olive, 1 silverlaced wyndotte wynnie, 1 buff Oink, 1 wellsummer Bob, 1 blue andelusian Nugget, 1 lakenvelder Henry, 1 austrawhite Spot, 1 leghorn Foghorn, 2 Cochin bantams Harry and feet, 1 polish brown leghorn Penelope. Me, wife, 1 son, 1 daughter. Wow!!!