I have 15 hens. I've used the same feed brand from the same store for 2 years. This last bag they simply wont touch. I know they have to be hungry, so I've let them out to free range but there can't be much food since it is February. I hate to throw the bag away. I just bought it. It has been stored in the same container with a lid, never got wet, smells the same as always, looks the same (no weird bugs or debris). I can't figure it out. Could the feed be spoiled and they know something I don't? Tonight I gave them some scratch and BOSS to hold them off until I go back to the feed store. Would you take the bag back? Would you switch brands? Ideas? Suggestions?