Start by finding out why the hay is left
A rabbit who ignores hay is rarely being stubborn — something is usually outcompeting or undermining the hay. The commonest cause is simply a full stomach: a rabbit filling up on pellets, muesli or large carrot and fruit treats has little appetite left for the food that takes real chewing. The second cause is the hay itself: a dusty, brown or musty bale that has sat open for months smells flat to a rabbit even if it looks acceptable to you. The third is placement — hay offered only in a rack in a corner he rarely visits might as well not be there.
Why this is worth fixing properly
Hay is not a side dish for rabbits; the long strands keep the gut moving and the constant chewing wears down teeth that grow throughout life. A rabbit living mostly on concentrated food is set up for soft droppings, a sluggish gut and overgrown teeth over time. That is why coaxing hay intake up matters more than any other single diet change you can make for him — and why a sudden complete refusal to eat hay, especially alongside not eating at all, is a different problem that needs a vet promptly rather than a feeding experiment.
The changes that work, in order
First, shrink the competition gradually: reduce pellets a little at a time over a week or two toward a small measured handful, and keep sweet treats rare, so genuine hunger points him back to forage. Second, upgrade and refresh the hay — replace small amounts daily rather than topping up a stale pile, and shake out dust before serving. Third, try a different hay: a rabbit who walks away from one timothy cut may dive into a softer meadow hay or orchard grass, and a handful of readigrass-style dried grass mixed in can restart interest. Fourth, put hay everywhere he loiters: stuffed into the litter tray he grazes from while he toilets, packed into a cardboard tube, and piled by his favourite sleeping spot.
Making hay the interesting option
Rabbits forage, so hay that behaves like forage gets eaten. Hide a favourite leafy herb or a few dried petals inside a hay pile so he has to pull strands aside to find them, and offer hay in a digging box if he enjoys rearranging his enclosure. Serve a fresh handful at the times he is naturally most active and grazing — early morning and evening — rather than only at your midday clean-out. Weigh or photograph the pile morning and night for a few days; owners are often surprised that a rabbit labelled a non-eater is eating steadily overnight once pellets stop filling him up first.
When hay refusal is a warning sign
If your rabbit is eating nothing at all, producing few or no droppings, grinding his teeth, or sitting hunched and quiet, stop the diet project and call a vet the same day — gut slowdown and dental pain both present as food refusal and neither waits. Book a dental check too for a rabbit whose hay eating has faded gradually while he still manages soft food, because sore teeth make long-strand chewing the first thing to go. Once he is cleared, the family can keep the new routine honest when KinsLe Care Teams assigns the daily hay refresh and pellet measure, with each completed task timestamped for everyone to see.