Hi! New here and I need some feedback. We lost a hen today. We only had two and now the one is alone. Should we try to add another older hen or a chick. She actually seems sad. Have no idea what killed the hen, but they have been healthy and happy. I am not sure how this hen will fair being all alone now. We don't want to have too many hens but loved the pair. They have been together since they were chicks. Any help would be greatly appreciated!