One of my 5 month old cochins is very thin and her keel bone is obvious to touch. She eats *plenty*, always has food available and plenty of treats and scratch. She never shies away from a good meal. I have not seen any visible signs of worms but I know this could be an explanation. Otherwise she is perfectly healthy; bright eyes, shiny feathers, intelligent and curious. She had a bad case of lice when I got her and her sister, but we treated with Sevin and they are clear. So, does it seem like worms are the likely cause? Aren't worms highly contagious (none of my other birds are this thin)? I've never treated my birds for any kind of pests (other than these for lice) but I feed them diatomacious earth and apple cider vinegar. I've heard of garlic as a solution for worms but how should I feed it to them..fresh, granulated, minced or what? And how much/how often? I'm not against giving them a medication, either, if they need it. Any recommendations for worm meds and dosages? Thanks for your help!