Strange Colored Diarrhea

[RaliaTheChicken]

I have two roosters that I recently let back out into the yard (they were in the coop for a while due to them having escaped the larger pen and so the fence needed to be fixed) and I noticed some VERY concerning poop by the door. It just appeared today and I'm not sure which one of them it is from. They are both acting completely normal and are eating and drinking normally, as well as walking around perfectly fine. I'm not sure what to do... Any ideas on why it's like this?

Here are some pictures:

 

[WhiteWyan]

Looks like they ate some blackberries or something?

 

[RaliaTheChicken]

That could be, but only thing is I never gave them any and there shouldn't be anything like that in the yard... I can look around and ask my mom if she gave them any, but I don't think she has.

 

[lazy gardener]

First guess is some sort of berry. Other guesses might be some charcoal. Been dumping stove ash? Every now and then my birds will have some very bazaar colors. Usually, after puzzling for a while, I can trace it to something they've been enjoying as a diet treat.

 

[RaliaTheChicken]

The only thing I could think of is that our neighbors are building a house really close to where their coop is, so maybe something came from over there? I'll go investigate.

 

[RaliaTheChicken]

I have yet to ask anyone if they gave them anything, but upon closer inspection I noticed some grass bits in the poop... Not sure if it just didn't get completely digested or if it's because they're walking in it. I also saw that they were eating the grass before I stepped outside too. Could they possibly just be eating too much of it too fast and since they haven't had so much grass in a while, their poop just looks weird?

 

[Eggcessive]

Blueberries or red cabbage can cause those kinds of droppings. I would not worry about them unless they continue.

 

[RaliaTheChicken]

Okay, I'll just keep an eye on it then. Thank you so much everyone! I'll let you know if they keep happening.