Short story, I let out all my chickens to free range for a bit and they were all accounted for but when I locked the run at their bed time, one of my 6mo old golden sex link was dead in the run without a feather out of place. So obviously I had to open her up. Curiosity always gets the best of me! I didn’t notice anything abnormal about her the day before or the day I let them out. I’m usually pretty good about noticing anything off. So, I opened her up, and all looked normal except her ovaries. There was absolutely no egg, yolks, or a mixture of the 2 was found anywhere. Which right away was a red flag because the other 4 pullets have all started laying like crazy for weeks. I found this in her vent area. It was very dense and obviously was not supposed to be there. It looked like a massive plug. Has anyone seen anything like this? What caused it? It didn’t look like enough to kill her but I guess it did.