We just rescued two hens who are about 18 months old. The man who had them said he was told that when they stopped laying to get rid of them. We told him it was winter and they lay less or not at all due to light etc. He was very sorry that he had already 'offed' his rooster and two of his hens before we intercepted. Especially the one that he was leaving until last was hand raised from a day old. He even cried when he said goodbye to her. I'm surprised he was planning to kill her. She could still have made a pet even if she didn't lay!!