bright kelly green droppings?!

Just when you think you've seen it all - somebody in my chicken run is making poops that are bright, and I mean bright kelly green. Yikes!

Never seen this before, and suddenly there are three large poops within past few hours. I've got a kid sitting out in the run right now to figure out who the chicken in question is. Here's what I can tell you:

The sick one is definitely female, definitely btw 1-3 years of age (my chicks are completely separate). No new birds/quarantine issues at all. No new food or anything else different. Poop has no unusual odor or anything.

Out of the blue. Or shoud I say BRIGHT GREEN!?

Looking for advice: I'm thinking yogurt for everyone and when I find out who it is who has this problem, I'll separate them and then, if I have to, Neomycin for just that bird?

I have never used antibiotics on them before, and do not wish to if I don't need to.

Ideas? Advice?

Thanks so much!

 

update: found the girl, and hoping she's the only one:

NH Red, kid thinks she's George Weasley by name.

She's isolated in a crate now, on straw, with water and pellets, and I'm about to make her a scrambled egg on the premise that intestinal bugs sap their protein.

Poop was not only birght, bright, mindblowing poison green, but came out as liquid. Ugh! Something nasty and bacterial?

Advice?

 

Nope. We are talking really, truly kelly green and liquid. Looks like the color of a pool table. Ugh!

MWDH1, I couldnt get that link to work. Would you mind posting it again? Thanks so much.

 

Highly informative poop pictures - thank you! But still nothing like this bright green liquidy poop. Ugh!