The honest answer: longer than you hope, shorter than you fear
A rescue bird arriving in a new home is processing a new cage, new voices, new light patterns and new hands all at once, often after losing the only home it knew. Most birds begin eating reliably and watching the household with interest inside the first week. Settling in the deeper sense — relaxed feathers, playful behaviour, choosing to come toward you, accepting a predictable routine without flinching at ordinary sounds — typically takes one to three months. A bird that has been neglected, passed between homes or frightened by handling can need considerably longer, and that slower pace is information about its past, not failure on your part.
The first days: quiet is the whole job
Place the cage where the bird can see household life without being surrounded by it — against a wall, at roughly your eye level, away from doors that slam and kitchens full of fumes and clatter. Cover part of the cage so the bird always has a retreat. For the first days, keep interaction to presence: sit nearby, read, talk in a low, unhurried voice, and let the bird learn that you arrive, do no harm and leave again. Change food and water with slow, announced movements, and keep hands out of the cage beyond what those jobs require. A bird that will not eat while you watch is not being stubborn; eat-with-an-audience is a trust milestone it has not reached yet.
Weeks two to six: routine becomes reassurance
Birds settle through predictability. Feed at the same times, uncover the cage at the same hour, and use the same short phrases before you approach, so the day stops containing surprises. This is when most rescue birds start showing you who they are: the food they run for, the sound that makes them freeze, the toy they finally touch. Offer treats from fingers through the bars only when the bird moves toward you calmly, and end every session while things are still going well. If the bird came with a favourite food, perch or toy from the rescue, keep it in place even if it looks tatty — familiar objects are anchors while everything else is new.
Building toward handling and time out
Let the bird's body language timetable the next steps. Leaning toward you, grinding its beak contentedly at rest, and stepping around the cage to follow your movements are green lights to open the door and let the bird choose whether to come out. Reaching in and grabbing, however kindly meant, can reset weeks of trust in seconds. First outings should be in a small, bird-proofed room with curtains drawn over windows, and the bird should be allowed to return to its cage under its own power wherever possible.
When slow settling needs a vet's input
A bird that is not eating after the first couple of days, sits fluffed and sleepy at the cage bottom, breathes with an open beak or tail-bobbing, or shows discharge around the eyes or nostrils needs an avian vet promptly rather than more settling time, because illness and stress look alike at first glance and birds hide sickness until it is advanced. A check-up soon after adoption is wise for any rescue bird whose recent history is patchy. KinsLe Transferrable Profiles mean the notes from that visit, the foods that tempted the bird and the fears you mapped can all live in the bird's own profile, and if the bird ever moves to another home, that hard-won knowledge transfers with it instead of starting from zero.