My chickens stopped eating

[JustJean]

When I went to feed my 4 RIRs this morning, instead of rushing for their feed like banshees they pecked at a few pieces and then ignored the food. I tried giving them some of their favorite treats (peanuts and raisins) and they weren't interested. Should I be worried?

 

[Eggcessive]

How old are they? Are they lethargic or standing around hunched or puffed up. Any diarrhea or blood in their droppings? Check the feed closely for smell and color, since mold can get in the feed this time of year.

 

[JustJean]

Two of them are 2 and the other two are 5 months. My first thought was the feed but it looked and smiled fine. That and they wouldn't eat the other stuff that I brought from the house. No blood and no diarrhea. The are dusting a lot and are very vocal. Other than those two things, they seem no different.