I purchased an Orpington rooster and 3 Orpington hens at auction a month ago. Since then we have only had a few eggs, and some went missing that I was waiting to see if were going to be set on. The temps here have been high and it has been humid. I did crack three of the ones that they laid and they appeared to be fertile. I really want to have some chicks! Do you think the temps are effecting them or did I get a dud set of chickens?