Roost time reveals illness in an aviary because a finch that cannot keep up settles low, fluffs up apart from the group, or misses the scramble for a favoured perch. Prepare the observation cage before you catch anyone: a small cage with paper lining, food and shallow water at floor level, and one low perch, set in a warm, quiet spot. Dim the aviary, catch the unwell finch with a soft net while keeping handling down to seconds, and settle the bird in the prepared cage while the companion stays in the aviary. Speed matters less than calm, as a chased finch that crashes around the aviary arrives in the observation cage exhausted, and exhaustion in a bird this small muddies every sign you then try to read.
Catch the Bird With the Room Working for You
Birds settle as light falls, so work with the dimming rather than against the flock. Lower the aviary light, let the birds quieten for a few minutes, and identify your bird's exact position before you reach in. Use a soft, fine net, guide the finch gently into a corner where the net can close without a chase, and lift the bird out inside the net rather than grabbing through the mesh. Support the body fully for the few steps to the observation cage, release the bird low inside that cage, and withdraw your hand slowly. Repeat handling as little as the night allows, because every capture costs a sick finch energy the bird needs for warmth and recovery, and your four recorded signs will tell you more than repeated close inspections under a bright light.
Watch Four Signs Through the Night and Morning
Record exactly four signs at each check, in the same order: eating and drinking seen, droppings on the paper, breathing, and posture and movement. Fresh paper makes droppings countable and readable, so note their number, colour, and wetness rather than writing a verdict. Breathing in a resting finch should look easy and almost invisible, so record any tail bobbing, open-beak breathing, or audible clicking in plain words. Posture and movement cover where the bird sits, on the low perch, on the floor, fluffed or sleek, and whether the bird startles and flies strongly when you approach or barely shifts. A worked check follows those four signs in order: eating and drinking seen; droppings on the paper; breathing; posture and movement. Check late in the evening and again early in the morning, and write each check up at once rather than trusting the night to memory.
Keep the Companion and the Aviary Steady
The healthy companion stays in the familiar aviary, eating and roosting as usual, and your job there is observation rather than separation, watching for the same four signs at the usual roost check. Separating a well bird 'just in case' doubles the stress and halves your ability to see who is actually ill, while a companion who develops signs earns a second observation cage and a vet call that now concerns the aviary as a whole. Phone an avian vet first thing in the morning, and phone that night for breathing effort, a bird sitting on the cage floor unable to perch, or a finch that has stopped eating entirely, as small birds decline in hours. Read the vet your recorded checks in order when you call. Noted through the night in that fixed shape, the record shows the clinic a timeline instead of a worried impression, and Pet Passport inside KinsLe keeps the finch's checks with its history.