@casportpony the veins are very hard to see. They're super small. There's no bleeding or anything and he's determined to get out. If he does get out and he still has yolk attached, could I put him under a heat light or something?
The blood was coming out of a membrane tear Saturday morning when I first found out he was hatching. It stopped after I put a paper towel to it. @caesargirl he hasn't bled since