I bought a clutch of four pea chicks an lost two of them. After transfering the last two to a bigger enclosure I notice one of them gasping for air. I picked it up and placed small pressure on its chest and could literary hear the garggling noise of the air coming out of the mouth and rear. After letting it go it began shaking its head and some snout came out. I did some research and everything points to gape worn: Droopy wings Gasping air Black stool with live parasites present I began a treatment of 1cc of Tylan50, and Bread laced with Ivermectyn 1.84% paste. I will will give them a second treatment of dewormer today an keep them under observation for 72 hrs. In the mean time I'm collecting all signs of black stool to keep other births from getting infected.