Something small, hard and red on egg yolk

[LolaWill]

Hello! I'm not sure where to post this question and I've searched to see if there is something similar on the board but I came up with nothing and I'm really needing to put my mind at ease. I was just cooking up some eggs and two eggs had something small, hard and red on the yolk. Not actually attached to the yolk, just sliding around the yolk. I couldn't make out if it were a parasite or something but it has me concerned. We have four hens and I don't know which hen these eggs came from. Has anyone seen or heard about this? It wasn't just a blood spot, it was an actual piece of something that was hard. Any help would be so appreciated!

 

[ChickensAreSweet]

http://edis.ifas.ufl.edu/ps020
could it have been a meat spot?

 

[LolaWill]

Thanks for that link, I'm going to assume they were meat spots. I just hadn't read that they may possibly be hard in texture. I'll have to keep an eye out and see if it happens more often. Thank you!