I have some baby chicks that I got from a hatchery. They are one week old today. One night, I noticed one of the chicks just opening and closing its mouth all the time. I wasn't sure what she was doing. But she continued to eat and drink normally. The next day, when I got home from work she was deceased. A few days later, one of my other chicks starting doing this same thing. It's like they aren't able to breathe properly. I googled this, and found a thread that said to rub their neck, that there is food caught in the throat. If you did this, then they would be fine. Plus give electrolytes in the water and maybe offer her some yogurt. I have done all of these things. My chick seems to be doing better, but she continues to make this open and close mouth motion with her beak. Sometimes, after rubbing her neck she stops completely, but when I check on her later she has re-started doing it. At this point. I do not know what to do. Please any advice would be great! I'm trying to save her since I already lost one! I have 5 baby chicks left. I have never had this problem raising other chicks. I normally use medicated feed. But this time, I just bought Dumor feed. Maybe the grains are bigger and cannot go down easily? I do have 4 chicks that haven't had a problem!! Please Help.