Chick pooping blood

We noticed yesterday blood in the brooder. One of our chicks is pooping blood Not sure which one it is. It is hard to tell on the barred rocks as there feathers are darker. Does anyone have an idea why and what may have caused this and what I can do to help the one that it is. Their bedding is of pine chips. And they are a month old now.
Thank you in advanced. I know it is one of the percher ones just can't catch the little one who is doing it.

I'm guessing Cocci with the bloody droppings. Get them some Sulmet in their water and ASAP and also some plain yogurt in tsp amounts to put the good bacteria back in their gut as the Sulmet will clean all bacteria out.

Cocci will spread very rapidly. Keep your pen very clean and segregate sick birds if you can as well birds will pick at the bloody droppings.

We lost 24 birds in 24 hours when we were hit with it so get that SulMet quick if you can.

Treat them all...if they don't have it yet or are only minorly affected, it will get worse. No need to separate for cocci, as they all need the treatment due to exposure.

What is sulmet and where do you get it what does it look like? Does it look like a rock crystal smashed up?we were giving this stuff incase our babies butt got pasted up. Not sure of the name of it because the guy that gave it to us is not home to ask.
None of our birds are looking sick or acting sick.?.

Sulmet is a coccidiostat. Amprol and Corid work as well. You should be able to find one of them at a local feed store or TSC. They are usually liquid and added to the water.

Use Corid (amprolium) if you can, and Sulmet only if you must, as Sulmet is much rougher on them, and does not cover all species of cocci as Corid does. Try a vet if you cannot get it at a feed store.

What causes this and also all the feed mills and the vets are closed what can I do in the meantime?...

I feed them medicated feed.And we just quit giving them electrolytes a week ago. And I keep their brooder clean every other day it is shoveled out and fresh is put in. But they all seem to be active. Is it possible maybe one of them ate a piece of pine chip and it is stuck in the intestine?.....? Also if it is cocchi they like to lay on top of the water canister and poop in the water trouf do you think it might have happened that way?...? Just asking as I new to all of this with the babies..

Coccidiosis is caused by a protozoan parasite. All chickens get it and they develop an immunity to it if it doesn't get out of control.

Poop in the water is a bad thing because the oocysts (like eggs) of the parasite get passed out in the faeces. They go into the water, and the other birds ingest large numbers of them and get overloaded with the parasites as well. Perhaps you could put something over the water container so they don't poop in it, but can drink drink from it.

Coccodiosis thrives in a moist, warm environment. If you can keep the litter completely dry you can help keep it under control. Once they are pooping blood, though, you need medication or the birds will usually die.

I don't like giving yoghurt to birds with coccidiosis, although I know others do. I prefer to use a powdered probiotic that doesn't have protein in it. When a bird is digesting higher levels of protein, increased levels of trypsin are released. Trypsins break down the walls of the ingested oocysts faster and so increase the rate of reinfection. Having said that, it's only a speed thing, I know yoghurt does introduce the helpful probiotics as well.

You need the meds as quick as you can get them.