TOP LEFT: Found this strange looking "rock" in an egg this morning. The shell was softer than usual. TOP RIGHT: Found this tiny egg in the nesting box last night. There was also an egg white with some yolk in the nesting box. I couldn't find any pieces of a shell. What causes that...Should I be concerned??? BOTTOM PHOTO: I found this egg this morning. I brought it in and opened it since it was the same color and size of the one I opened this morning with the "rock" in it. The shell was also very soft. No "rock" in it and the egg white and yolk looked normal...but the outside of the shell has this strange rough patch of small bumps. What the heck is going on with my chickens??? Thank you in advance for any help or advice!!!