What is This?

[Lrpete]

Yesterday I butchered some meat birds and two 3yo ducks. The hen had stopped laying eggs, or was only laying one every few weeks, and the drake was actually mounting my chickens and chasing them around the yard. He was becoming so disruptive in the yard that I decided he needed to go And I wasn’t going to leave the hen alone. So, when I dressed her, she had a fully formed egg that looked she was ready to lay it. As I pulled the entrails out, I found one yolk and about 5 of these round things. I cut one open and found a hard black mass inside which I also cut open. It looked like a small hard yolk with a bunch of black stuff around it. I’m mad at myself for not taking a picture of THAT part! Anyway, I’ve never seen this before and have no idea what it is. It almost looks like eggs that didn’t develop, but how did they get into this hard black mass situation?

 

[Isadora]

Wow, that's interesting! I haven't seen anything like that before.

 

[Everose]

That's so weird!!! I wish I knew people to tag but pretty much everyone here has pet ducks. Did it stink?

 

[Miss Lydia]

@casportpony or @Isaac 0 may have an idea what this could be. Very strange looking.

 

[Lrpete]

Not at all. It was just really weird. Like a small marble size piece of what looked like a hard boiled yolk and this very strange blackish-red lumpy stuff. The contents were very firm.

That's so weird!!! I wish I knew people to tag but pretty much everyone here has pet ducks. Did it stink?

 

[HollowOfWisps]

I have no idea, but my guess would be some sort of gallstones

 

[Lrpete]

I have no idea, but my guess would be some sort of gallstones

No, I don’t think so. Gallstones are like small rocks. These are all tissue, very firm tissue. After I slipped the outer tissue off, I cut the black material in half. I wish I would have taken a picture of it because it looked like it had a small bit of hard yolk with blackish red tissue around it. I’m thinking they’re yolks gone bad, but can’t figure out how or why it would have happened. My guess is they’re been in the reproductive track for a while.

 

[Miss Lydia]

The making of lash eggs?

 

[Lrpete]

The making of lash eggs?

What are lash eggs?

 

[HollowOfWisps]

No, I don’t think so. Gallstones are like small rocks. These are all tissue, very firm tissue. After I slipped the outer tissue off, I cut the black material in half. I wish I would have taken a picture of it because it looked like it had a small bit of hard yolk with blackish red tissue around it. I’m thinking they’re yolks gone bad, but can’t figure out how or why it would have happened. My guess is they’re been in the reproductive track for a while.

Contrary to popular belief just because they are labeled as "gallstones" does not mean they are all rock like as some can actually be soft. However, like I said before it was just a guess. Do you know exactly where you found them anatomically speaking? I know you said entrails, but that covers a broad spectrum of possible locations.