Chicks collected from post office at opening this morning about 3 hours ago. All very lethargic and chilled. Got them warm and watered which has done a world of good but now seeing blood streaked mucousy diarrhea, some foamy droppings, this weird thing in the picture below, and pooping seems to be causing them discomfort with loud cheeping followed by an audible squirting sounding bm. Should I treat them for cocci or could this be something else?