I am so happy to hear I am not the only one going through this situation. My old mother hen, Dede, has done the same. After 6 years of laying eggs and producing chicks, she has now decided she doesn’t want to live with those noisy cockerels and young buff hens anymore. She has moved into my kitchen, quite uninvited, made her roost beside the dogs bed and get first choice in kitchen scraps.
She is free to leave at any time, the door is always open. If I am working or reading outside she will join me, and if I am on the computer at the kitchen table she will sit under my chair. The dog seems not to be bothered about sleeping next to her and the cats just look on in distain ( no difference there...).
I am happy to have her around and that after all these years of service she has provided me with, I am happy she feels content to spend her last moments with me.
We are blessed to have this wonderful time with our family what ever shape they inhabit
