My young American game hen has become broody and today is her 15th day of sitting on eggs. Only 2 out of the 6 eggs are her own. This is our first time we've attempted to get chicks from a broody, so I'm pretty unexperienced. I candled 4 of the eggs today and all I saw was darkness except for the air space. No blood ring visible. I couldn't see the blood vessels past the dark shadow. I'm not sure if these are alive or not so can someone tell me if they sound like they are.