We have five week old chicks that have been thriving up until this evening. We have a White Laced Wyandotte, a Gold Laced Wyandotte, a Sapphire Gym, and a Spphire Olive Egger. I'm trying to get them used to being outside so I put them in the small run separated from the rooster and the hens that we have. I go to pick him up and bring them inside and the two sapphires are laying close together underneath the ladder. I felt these large squishy bubble like things underneath their beaks and they seem like they're really tired. The white Lace Wyandotte is not far from them, she's just a little bit more alert and moving around. The Gold Lace is still acting normal but I'm beginning to worry that he'll be next. I've attached pictures of The Sapphires, and their poo. I did mix up a solution of Nutri-Drench
hoping it will help, but I don't know what else to do.