Start with who this giant is and where he came from
A Flemish Giant's record file begins on arrival day with identity: the breeder, rescue or previous owner he came from, the age you were given, his colour and markings, and clear photos from both sides and the front. Photograph him next to an everyday object so his starting size is obvious later. Write down any paperwork that came with him — lineage notes, prior vet visits, or a spay or neuter record — and the name of the exotics vet you will use, because a rabbit this size needs a vet comfortable with giant breeds from the first visit, not the first emergency.
Weight is the record that matters most for a Flemish Giant
A Flemish Giant grows for far longer than a small rabbit and can end up several times a dwarf breed's weight, so the weight log is the backbone of his file. Weigh him on arrival day using a baby scale or a bathroom scale by holding him, then weigh weekly while he is growing and monthly once his frame settles. Record each weight beside what he is actually eating. A giant who is gaining too fast is loading joints and feet that already carry a lot; a giant who stops gaining during growth, or starts losing, is telling you something a quick glance at a very large rabbit can easily miss.
Log the diet in giant-sized terms
A Flemish Giant eats on a different scale from other rabbits, and his diet record should show amounts, not just foods. Note the hay type and roughly how much disappears each day, the measured pellet portion, and each new green as you introduce it, one at a time, with his droppings' response over the following days. Flemish Giants are prone to sore hocks and carrying excess weight, so a diet page that pairs intake with the weekly weight lets you adjust portions on evidence instead of guessing. Also record treats and chews, which have a way of quietly doubling in a household where several people feed the big rabbit.
Track feet, flooring and movement
A Flemish Giant's hocks carry more load than any other breed's, so his file needs a feet section. Note what flooring he lives and exercises on, check the fur and skin on his hocks regularly, and record what you see — full fur, thinning, redness — along with any change you make, such as adding thicker mats. Log his exercise space and time out of the enclosure too. If his hocks redden, he shifts weight off a foot, or he moves less, that dated sequence of notes is exactly what a vet needs, and worsening redness, a limp or reluctance to move earns a prompt vet call rather than another week of watching.
Keep the veterinary thread unbroken
A Flemish Giant's medical record should list every visit with its reason and outcome, the vaccinations his vet recommends for rabbits in your area, any dental findings — giants wear through a great deal of hay, and tooth trouble shows up first as selective eating — and any procedure with its aftercare notes. Add your emergency plan: the out-of-hours exotics contact and who can transport a very large rabbit at short notice. Pulling identity, weights, diet, feet and vet notes into one KinsLe Pet Passport keeps this giant's whole story in a single portable packet, ready for the vet, a boarding stay, or a sitter meeting him for the first time.