In addition to our flock of 4 (adorable) hens we have 4 chics that my daughter is raising in a large dog crate in her kitchen. The chics ate all growing but I am concerned about our little barred rock. She is eating and gaining weight but seems to often have mucous coming from her beak. She also seems sleepy as she usually keeps her eyes closed. Do I need to be alarmed? What to do???