Temperature: steady warmth, not a warm house in general
Small birds lose heat fast, and what wears a canary or finch down is rarely one cold night — it is the daily swing between a warm afternoon and a chilly small hours beside a window. Ask what temperature the bird room holds across a full day, not what the house thermostat says: the boarding room should sit steadily in the same comfortable range your birds live in at home, without the cage against single glazing, over a vent, or in the corner the radiator never reaches. Ask whether heating runs overnight or switches off on a timer; many bird rooms cool sharply after midnight. A boarder who can quote the bird room's recent thermometer readings without checking is managing this properly.
Light: the waking day your birds are used to
Canaries and finches run their lives by light: they feed, sing and moult to a day length, and their bodies expect the rhythm they live with at home. Confirm the boarding room's lights-on and lights-out times and compare them honestly with your own routine. A room lit bright until late keeps small birds feeding out of pattern; one darkened by mid-afternoon shortens a feeding day their fast metabolisms can ill afford to lose. Ask whether cages get natural daylight or a consistent artificial cycle, and whether covers are used. Finches startle in total darkness, so ask whether a dim night light stays on — a tiny glow lets a panicked bird see its perch and resettle instead of crashing around the cage.
Noise: small birds hear a boarding house differently
Before booking, stand in the bird room and listen: dogs barking next door, a washing machine thudding through the wall, doors slamming, a radio left on all day. Constant moderate noise is more wearing than the occasional loud moment, because small birds never fully rest inside it — and canaries in particular go quiet, which owners misread as the bird being 'no trouble'. Ask where the noisiest parts of the day happen and whether your birds' cages can sit in the calmest part of the room, away from the door and the through-route. If the boarder also runs a kennel, visit at the busiest hour, not the quietest; that is the room your birds will actually live in.
Smells and air count as conditions too
Temperature, light and noise get asked about; air often does not, and for small birds it should. Canaries and finches have delicate airways, and a room sharing air with a kitchen brings cooking fumes across the cages — overheated non-stick pans are a recognised danger to birds — along with scented candles and cigarette smoke. Ask where the bird room sits relative to the kitchen and whether scented products are used anywhere near it. Also check the air is not bone dry: hard-run winter heating dries a room out, and small birds in dry air get irritated airways across a long stay. None of this needs special equipment — just a bird room kept as a bird room.
Confirm it in the room, not over the phone
All of this is verifiable in a ten-minute visit and nearly impossible to verify by phone. Go in person, ideally twice: once when your birds would be settling, once when the business is busy. Stand where the cage will stand: feel for the draught at that height, check the thermometer, and listen for a full minute. Write down the figures the boarder gives you — the temperature range, the light times, the night-light arrangement — and check they match what you saw. Once every figure checks out, lodge them in your KinsLe Care Pass — the birds get the room you inspected, on paper, for every night of the booking.