Is this pasty butt?!?

I just got chicks yesterday, I checked when I got them and all their butts looked fine. This morning I checked again, this one chick has some poo stuck. Is that the kind that I need to remove, if so how?

I think they aren’t in great shape, unfortunately their heat plate went out overnight so they were chilled this morning. Can I clean it without getting it wet?

Currently off to tractor supply to get a new heat plate. Hope they will recover okay