Today I noticed that my beautiful, friendly, healthy-seeming speckled sussex has a large tumor (?) on the left side of her breast. I can feel it under the skin and it's quite large. She is laying fine and appears healthy and happy. Is this something "normal"? It doesn't seem so to me, but I'm not sure what can be done. She's my favorite bird in the flock, so I'm especially sad Any advice you can give me would be very much appreciated! Thanks in advance.