I have 6 new chicks that I bought at a chickenstock this past weekend. My mom was looking at them this evening and noticed something that probably wouldn't have ever caught my eye. They all have big squishy lumps on their chests. My mom noticed it while I was at work, and was afraid it was an impacted crop and took out all the shavings. I have never noticed if chicks in the past have had this, so I wasn't sure if it was normal or not. Is it just that they all just ate and have food in there, or could this be a problem such as impacted crop?