Yesterday I boiled a few of our eggs and in one of them, after it was hard boiled, I found a strange blob, much bigger that meat spots usually are.. It was about 0.2 X 0.3 " (0.5 X 0.8 cm) and reddish-brown, sitting on the outside of the yolk. It felt "meaty"' like a piece of boiled liver. The surrounding egg white was discolored with brown as well. Can't have been fertilized - I've got 4 egg laying hens and two 8 weeks old chicks. No rooster.