Before the diary starts: the pre-brumation check
Brumation is the bearded dragon's winter slowdown — appetite fades, basking shrinks, and the dragon retreats to a hide for days or weeks of dozing. It is natural, but it is only safe for a healthy dragon, and the diary's first page should prove yours qualified. Book a vet check while he is still active and eating, with a fecal sample tested for parasites: a dragon carrying a parasite load or an undiagnosed illness should be treated and kept warm and feeding, not allowed to cool into a state where his body cannot fight. Record the dates of his last full meals and his last bowel movement, because a dragon should go into deep brumation on an empty gut — food sitting undigested in a cold stomach causes problems that an empty one cannot.
What a weekly entry should capture
Brumation is mostly stillness, so the diary is a light weekly habit rather than a daily log, and brief lines beat essays you will not keep up. Weigh him once a week on the same scale, at the same point in the day, and write the figure down even when it has barely moved — barely moved is exactly what you want to be able to prove. Note the basking and cool-end temperatures and the light schedule you are running, since many keepers shorten the day length as brumation deepens. Add one line of behaviour: slept in the hide all week, surfaced Tuesday and basked for an hour, drank when offered water. Finally, record anything offered and taken — a few greens accepted, water lapped during a brief wake — and any bowel movement. Six short lines, once a week, is a complete entry.
Reading the diary: normal versus worrying
The diary earns its keep when something looks off at 11 p.m. and you need to know whether it is brumation or trouble. Normal looks like this: long sleeps broken by occasional slow repositioning, sometimes a brief bask or drink, and weight that drifts down only slightly across the whole season. Not normal: weight falling steadily week on week or dropping sharply, a black beard held for days, discharge from the nose or mouth, frantic restless activity in an animal that should be torpid, or a dragon who surfaces looking hollow and stays that way. Any of those ends brumation — warm him back up gradually over days, restore the full light schedule, and call the vet. Because the diary has the weights and dates in writing, 'he has lost weight' becomes a number the vet can judge instantly.
The spring pages: waking up on record
When the days lengthen and he begins surfacing on his own, the diary follows him out. Record the first proper bask, the first meal and what it was, his first bowel movement, and how his weight tracks against his pre-brumation figure across the first month back. Compare the whole season with last year's pages if you have them: dragons develop individual patterns, and knowing that yours always sleeps deepest in the middle month, or always loses a little more than average, turns next winter from guesswork into routine. Kept inside his KinsLe Pet Passport, the brumation diary sits alongside his vet records and weights, so the full story of every winter is in one packet for you, a sitter, or his vet.