i have no clue what i am doing. my family gave my kids three chickens and a rooster. they said if i wanted more chicks that i had to just let the hen sit on the eggs. i have twentyfive eggs out there and i need to know how to tell if they have babies in there are are they just rotten. i really don't have a clue what to do. some of the eggs are brown and the others are green. i have started taking the new ones out. please can someone tell me what to do.