Quite a few of my rabbits are not eating their hay as much as normal. I've just rang my supplier and they tell me it is this year's. So, why I wonder don't they seem to like it? I thought perhaps they want it as bedding to keep warm now it's colder at night but I'm not sure this is the reason. Does it taste different or is it more nutritional so they don't need to eat as much? It's worrying me. Does anyone have any other ideas as to why they are leaving it?