My Americana chick that is about a month old has a lump on her neck/chest. I have checked it multi times and it does not feel like sandy matter so I'm not sure if it is food in her crop or what. It feels soft and is kinda squishy like fluid. I thought it might have been a cyst but it went all the way down and was gone for a day or so and then I noticed it today again but it looked bigger. What could it be if its not a crop full of food or a cyst can cysts just go and come as they please? Can any one help with this.