Well, I had been given 4 Isa Brown pullets (about 5 months old). I have had them for two weeks now. They were a welcome addition to my BO hen, BR hen, Australorp hen, and EE rooster. The Isa Browns layed well for the first week, but now have stopped. Now they came from a friend who had no rooster -- so not used to rooster advances, which he does!! And I have all my chickens on Duramycin for their cold symptoms (under the advice of wonderful chicken lady, miss_jayne). Everybody was acting fine, but they were sneezing and snotty sounding. The chickens have been on it for 5 days now and sounding better! They are on a layer mash, which the local feed store mixes up. This layer mash is supposed to have more protein (I think 18%, compared to 16%). Or do they just need a little more time to adjust to new surroundings? Any ideas? Oh, and sooo excited about my 5 EE pullets(8 weeks old) from miss_jayne. Just had to add that in there.