Yes, could be injury. I had two gandars get into a fight once, and one got a permanent limp, and his tail is a bit sideways now...but wasn't as a baby... DH says most genetic deformities show up at birth...You could breed and see if it shows up... if it does,don't hatch from her again.There are always some defects "lurking", and it may just be a combination of both parents... Sometimes it is just a "throwback", I get all occasional thick necks or bodies or a white bird out of one of my runners...