Bring the Californian inside and build her a bunker
A Californian rabbit stays calmest during fireworks when she spends the evening indoors, inside her usual pen, in the room furthest from the display. Californians are a large, solid breed, and a startled one throws real weight against whatever contains her, so the pen must be sturdy, latched, and checked twice before dark. Line her hide house deep with hay so she can burrow her face into it, drape a heavy blanket over one end of the pen to dull the bangs while leaving airflow at the other, and close curtains so flashes do not stripe the room.
Why hiding, not holding, settles a rabbit
A Californian rabbit is a prey animal whose first answer to a bang is to freeze or bolt, not to seek a lap. Lifting her out for a cuddle during a display removes her chosen shelter, restrains her exactly when her body wants to flee, and risks a spine or leg injury if she kicks free. Sitting quietly nearby, speaking in a level voice, and letting her stay in the hay house respects how rabbits actually process danger. A bonded companion in the pen beside her is worth more than any amount of handling.
Keep the evening routine boringly normal
Feed your Californian at her usual times, top up the hay rack before the first fireworks start, and refresh her water where she can reach it without crossing open floor. Appetite is the rabbit owner's early-warning gauge: a Californian still pulling hay through the evening is coping. Before the night itself, walk the room once from her eye level: anything she could crash into mid-bolt — a stool, a stored box, a broom — moves out of the pen's orbit entirely. Keep household noise ordinary — a radio playing at normal volume in her room softens the contrast of each bang better than total silence. Avoid taking her out to the garden for exercise once dusk falls, even if the sky seems quiet between displays.
The safety checks that prevent a fireworks escape
Most fireworks losses happen through doors opened for guests, not through pens. Keep your Californian's room door closed all evening, tell visitors she is not to be let out, and make sure no one props open a hall door near her. If she free-roams by day, end the session early and settle her in the pen before dark rather than chasing her around the room as the first bangs land. Double-check that the pen sits away from windows a panicked leap could reach.
Know when fright becomes a veterinary problem
Watch after the display ends, because the real danger in a frightened Californian is a gut that slows down once eating stops. If she refuses hay and pellets into the next morning, sits hunched and grinding her teeth, or produces no droppings overnight, contact a vet that day — a rabbit's digestion must keep moving. Minor startling with normal eating by morning needs no intervention beyond a quiet day.
Having KinsLe's Lost Pet Alert System ready on her profile means that if a door is left open at the worst moment, nearby members hear about your Californian at once and whoever finds her can reach you straight away.