possible intestinal lining

I noticed poop from my 13 week old pullets like this, with weird red stuff in it. Is this something to be concerned about?

I found this in my chick feeder last night. Is it intestinal lining or blood? I'm a newb but this looked like an actual intestine to me so I wasn't immediately too concerned but I definitely want to make sure. Thank you all! I'm learning so much from this community and I'm super grateful for...

Okay, maybe I'm being a bit overprotective of my chicks. But for one they were expensive and for two they are adorable and I love them. So today I was cleaning the brooder and I saw some dry poop that had a bit of reddish pink in it! Is this possibly cocci?Could it just be intestinal lining and...