Hello there, I'm relatively new to hatching eggs, and I recently obtained eggs from my chicken house (They were straight after the chicken laid them as we collected a few of the eggs the previous morning). Since then, I've got around 17 in my incubator that I've found. Some of them are likely infertile as I've candled all of them, but a few of them I'm not sure about. One of my eggs is on Day 10, and when I candled it today (or the past few days) all I can see is a large black 'thing' inside it. It's a bit hard to see and I'm not sure if there are veins in it, if anyone could tell me what this means and if my chick is still alive, thanks! Sidenote : I'm hatching black orpington eggs.