I have a 10 week Black Austrolorp that has a mass on the LEFT side of her chest? Could this possibly be her crop? Everything I've tried to look up shows it on the right side of the breast.
Yeah, a chickens crop is on the right. Try to get a picture once your home.If I hold her so that we are both looking in the same direction her left is the same as mine. That's how I checked the side. I'll try to get a picture when I get home.