I have (altogether in our coop),are 18 birds (as In chickens,no ducks).We have 6 nesting boxes,and several roosting spots.Usaully if a birds sleeping in them,you'll know,but Banshee unfourtently likes to "Trick" you.She is laying in a card board box (A "Nesting" spot),and she is "Covering" herself up in hay,like this morning.Naturally birds do this when laying,but,she already layed and egg.Is it possible for chickens to lay a "Second" egg?Any suggestions? 2 Question. This is dumb but,will birds occasionaly just,sneeze?If so,why?I am confused because,you'd think if a hens sick with a cold,or the flu,they wouldn't lay an egg,any guesses? Question 3. I have six ducks,and 18 chickens.They live together,but always part up.I mentioned I had six nesting boxes,but my ducsk will try laying with hens.Is this them bonding,or is just,natural? Question 4. How do you know if your roosters are Fertilizing your eggs?