Runny poop

[Porterfive]

We got 4 bantams on monday and since they have been with us one has had runny poop. It isn't all the time, seems to be just a couple of times during the day, the rest are all fine.
They are eating layer food and the occassional scratch.
Gross I know but it's dark brown and slimey looking.
They all seem perfectly healthy except for the settling in jitters.
Anyone know what causes this, do I need to worry about it?
Thanks in advance.
Jenny,
One of Porterfive

 

[silkiechicken]

Are you sure it is the same bird with the brown runny poo? All chickens will drop brown "creamy" poo a few times a day because that is their cecal poo. If it is just one chicken, maybe worms?

 

[Porterfive]

I am not absolutley sure it's the same one, just assumed.
Pardon my ignorance but what is cecal poo?

Jenny