Put the bond itself at the front of the file
The first page states the fact everything else depends on: these rabbits are a bonded pair. Describe the bond in evidence, not sentiment — how long they have lived together, that they groom each other, eat side by side, and rest in contact — and then state the terms plainly: they are to be housed together, boarded together, and never separated for convenience, because splitting a bonded pair can cause real distress and can damage the bond itself. Note the one circumstance that changes handling, which is a vet trip for one rabbit: the file should say whether the pair travel together to appointments, as many bonded rabbits do better attending as a pair, and what the boarder should do if only one can be seen. A rescue or boarding service reading page one should be in no doubt that accepting one rabbit means accepting both.
Record each rabbit separately inside the shared file
Bonded rabbits are still two animals, and the commonest file failure is one rabbit's details swallowing the other's. Give each rabbit a full section: name, photo, colour and markings, sex and neuter status, age as known, current weight, and the microchip number where one exists. Diets go per rabbit, not per pair — the amounts may differ, one may be the greedy one whose pellet portion is measured while the other grazes hay, and any food one of them must avoid belongs in their section in clear writing. Health notes are individual too: past illnesses, ongoing vet instructions copied word for word, and known sensitivities. Anyone feeding from this file should be able to answer, for either rabbit alone, what he eats, what he weighs, and what his vet last said.
Add the shared routine and handling instructions
After the individual sections, describe the life the pair share: their housing setup and how much space they expect, where their litter tray sits and how it is cleaned, their hay arrangement and feeding times, and their exercise routine. Handling notes deserve their own honest lines — which rabbit tolerates being lifted and how he likes to be supported, which one is nervous of strangers and best approached slowly or not picked up at all, and how each signals stress. Include the pair's dynamics for a stranger's benefit: who is the confident one who will investigate first, whether either guards food, and what normal squabbling looks like for them versus the chasing or fur pulling that means the pair should be watched and you contacted.
Finish with vet, emergency, and return-home details
Close the file with the practical net: your contact numbers, a second emergency contact, the rabbits' vet with the out-of-hours arrangement, and written permission for the boarder or rescue to authorise emergency treatment in your absence if you want that safeguard in place. Add collection details — who may collect the pair, on what date, and what happens if you are delayed — because a boarding stay needs an ending as organised as its beginning. Note what comes home with them: carrier, familiar blanket, remaining food, so familiar smells travel both ways. Held across both rabbits' KinsLe Pet Passport records, the complete file means the pair's bond, diets, and quirks survive the handover intact, whichever of the two a carer looks up first.