Is this poop concerning?

[MaeM]

There's something about the bright coffee-coloured ring in the first one that seems off to me. But the second one is also...kinda diarrheic?

For context, this rooster is on antibiotics (cephalexin) for a skin infection. I'm afraid this could be causing this kind of poop and I wonder how normal this is and if this is a reason to stop the treatment. Can't reach out to the vet until next week.

 

[MysteryChicken]

First poop is a Cecal Poop, second is a fairly normal poop, but the green is a sign he's not eating enough.

 

[BlindLemonChicken]

Antibiotics mess with humans in a digestive way so I wouldn’t be surprised if they do the same to chickens. Usually this isn’t a reason to quit taking them.