I have a 4 year old d'Uccle hen that had a really heavy moult this fall and I have noticed she is not quite her perky self. She seems to be feeling the cold and so I have moved her and her buddy into the shed with a heat lamp. I have started giving her a high protein snack in the morning... but what I was wondering is - could I put her back onto the chick starter for a while as she is not laying and doesn't need the calcium etc of the layer.... What do you think? If so do I transition gradually or can I just go ahead and change it right away? Thanks.