My 11 week old black australorp pullet has a strange growth on her left foot, right by the nail of the left toenail. She isn't bothered by it. It's the same lovely black as her whole leg and foot, and isnt very large. It just showed up a few days ago, and is pretty hard, like its calcified We just picked up all the chickens and did a 20 point inspection and aside from funky toe, everything on everybody is glossy, feathered, and quite pleased. What could this be and should i be freaking out?