I wouldn't be concerned except whoever did it also did it about 3 or 4 weeks ago. I am sure it is one of the RSL's but I have no way of knowing which one. Neither egg is perfect. One was hard but discolored with a funny circle on on side and the other was also discolored and a very thin shell. It was exactly the same way the first time it happened. I read on these forums it is from them eating too much. None of my chickens are fat. I don't know whether to be worried or not. My biggest fear is egg binding. Any suggestions?