Feel the Ribs Rather Than Trusting Your Eyes
A Californian rabbit is bred to be solid and well-muscled, with a broad, meaty build that looks heavy even at a healthy weight, so judging this breed by appearance alone misleads most owners. Judge by touch instead: run both hands lightly along your Californian's sides. At a healthy weight you can feel the ribs and the spine under a smooth, thin covering, like feeling knuckles through a blanket. If the ribs have disappeared under padding, if the spine sits in a dip between rolls, or if a dewlap is growing fast on a rabbit that is not a breeding doe, the food going in exceeds what this rabbit needs.
Weigh your Californian monthly and write the number down. A steady upward trend across two or three weigh-ins confirms what your hands suspect far better than any single glance.
Watch the Hay Rack, Not Just the Bowl
The clearest daily signal of overfeeding a Californian is a full hay rack at cleaning-out time. A rabbit that is filling up on pellets, muesli, or treats has no appetite left for hay, yet hay should make up the overwhelming bulk of what passes through its mouth in a day. If you are refilling the concentrate bowl more often than the hay, the balance is upside down.
Check the litter tray for the matching evidence. A well-fed Californian produces plentiful, round, crumbly droppings made of visible fibre. Overfeeding rich food produces softer, darker, misshapen droppings, and you may find uneaten caecotrophs — the soft, shiny pellets a rabbit normally swallows directly — left in the bedding because a rabbit on too rich a diet produces more than it wants to eat back.
Audit What Actually Goes Into the Californian Each Day
List everything your Californian eats in a typical day, including the items nobody counts: the second handful of pellets at bedtime, the carrot tops, the commercial treats, the nibble of banana. Californians were developed as efficient converters of feed into body, so this breed gains on amounts that a rangier rabbit would shrug off. In many households the measured morning portion is fine and the unmeasured extras are the entire problem.
Check whose hands are doing the feeding, too. A rabbit fed by two or three people, each assuming the others forgot, can easily receive double rations, and a Californian will not correct the mistake for you.
Cut Back Gradually and Let Hay Take the Space
Reduce concentrates in small steps over a couple of weeks rather than halving them overnight, because a rabbit's gut bacteria adjust to the diet it is used to. As the pellet portion shrinks toward a modest measured handful for an adult Californian, top the hay up constantly so the rabbit's chewing time stays the same even though its rich-food intake falls.
Keep greens steady rather than adding more to compensate, and drop sugary treats to rare occasions. Exercise space matters too: a Californian with room to move burns more and begs less.
Signs the Problem Needs a Vet, Not Just a Smaller Scoop
Book a vet visit if your Californian stops eating hay altogether, if droppings shrink or stop, or if the rabbit cannot reach to groom its rear end or eat its caecotrophs because of its size. A rabbit too heavy to keep itself clean faces flystrike risk in warm weather, and that combination — obesity plus a soiled rear — should be seen promptly rather than managed by diet changes alone.
Once portions are agreed, keep them agreed by writing the ration down where everyone who feeds can see it, and KinsLe Care Teams help by letting you assign your Californian's feeding turns and record each completed meal with a timestamp.