Four of my cochins have had empty crops the past 2 days, and I don't know why. My fifth one is fine, he/she has been eating and running around like crazy, along with the other 21 chicks that I have. These four aren't, so I brought them in and gave them some poly-vis-il. They all drink when water is placed in front of them, and one actively eats. The other three seem to have no interest in food, and I'm wondering if, due to their quieter nature, the others aren't letting them eat. I need to get some food in them, how do I do it??? My resources are limited, all I have is feed and poly-vis-il. They are 7 weeks old today from McMurray hatchery.