I thought I was dealing with a freak early onset case of cocci in 1 week old (vaccinated) chicks because I saw a few brownish red watery stools although no lethargy was observed. I started Corid Sunday or Monday and am still seeing a little bloody/brownish poop. I noticed today that only the brownish red runny poop looked like it had something in it. Upon closer inspection I saw what looked like saw dust and wood chips in the poop. When I first got them I had them in a brooder with pine shavings covered with newspapers and then paper towels. They kept digging the papers away down into the shavings. I took the shavings out the bottom and left the newspaper and paper towels. Apparently they were eating them and now are paying for it. Does anyone have any experience with this? Should I discontinue the Corid and start probiotics? Looks like a lot of blood. It's just one or 2 chicks (I think) due to 96% of the poop being perfectly normal. I've attached pics of the stools. If you look hard enough you can see the tiny pieces of wood. Anything I can do? Are they doomed?