Normal poop/vent?

[Cjcyndi]

Hello everybody! I hope everybody is staying warm. I was out with my chickens today and noticed a very dark dropping. Didn’t think much of it until I saw one of the chickens vent dirty. Not too much but I know they should be clean. So what do you guys think? I’m not sure who did the dropping in the photo. And they all seem to be acting fine.

 

[Wyorp Rock]

Droppings can be dark to light, looks like that may be a frozen cecal poop. I don't necessarily see anything concerning about it.

The dirty vent you may want to address. I assume it's cold where you are, I'd just see if some of the extra poop will crumble off the fluff and make sure her vent is not blocked by poop.
Sometimes hens with extra fluffy bums get poop stuck in the fluff and need to be tended to.