My 5 month old Salmon Faverolle cockerel has not been doing well the last couple of days.  Two days ago I noticed he was outside very little and sitting down most of the time.  Yesterday he didn't go out at all.  His comb is very pale also.  I noticed 2 days ago that his poo was greenish yellow on his bottom and not solid.  I was just looking at the other post about the "sleepy hen" and now I'm thinking it sounds similar.  Are worms a possibility is a chicken so young?  When I checked him this morning he was sitting and didn't get up.  Help, any advice would be apreciated.  Jen