Oh no! how sad
Do you have an automatic coop door? I was looking at them but I am afraid of just this issue...how does it know when all the birds are in??? I have 2 Barred Rock hens that push the envelope every night and don't go in until it's almost completely dark. Luckily I lock them in the run first and then let them roam until they decide to go in...then I count them all and shut the coop door.
I find this kind of amazing. When I check to see if all the birds are inside, I just look for Pocahontas, my barred rock hen, if she is on the roost ,I know the rest are all in. She is a dwadler and the very last one in every night.