My hubby and I thought it would be fun to let one of the girls hatch out some babies. I did a search and couldn't find any threads that 100% answered my questions. So here it goes! Ok, I have 17 hens and 2 roos. 1 roo has his group of girls that he "tends" to and the other roo has his select few girls. My question is, how do I know the eggs will be fertile? I mean, I know I see them breeding the girls, but how do you know if they are getting the job done or not? I have 2 hens in particular that go broody on a regular basis, so I was just going to pick who ever is broody at the time to hatch out the babies! How many eggs should I put under her? I have cracked open eggs to try to see a bulls eye, but I just can't tell! Help!!