How do I tell how old they are?? Just got them (8) today at Tractor Supply and they didn't tell me how old they were, just that they had been there about 4 days. Also how long before they can go out? We have an 'abandoned' chicken coop (we got rid of our roosters today) that they will go in later on. We have to clean out the coop, it is a small coop but held 4 eight month old chickens, they were 2 Delaware, 1 RIR and 1 Plymouth Rock, so I think this coop will hole 1 or 2 of these ducklings when it is time. Also, what should the temp be in the brooder? I also have 3 chicks in there as well. I think that is all the questions I have for now.