Small bird, surprisingly wide brief
A lineolated parakeet, or linnie, needs at least 24 inches long by 24 inches wide by 24 inches high for one bird or a pair, and a flight cage of 30 inches or more in length is a genuinely better life. Owners underestimate this cage because the bird itself is small, but a linnie is stocky, active, and a committed climber that uses every surface of its home. A narrow, tall budgie cage gives it a chimney to sit in; a wide cage gives it a territory to patrol, climb across, and fly through in short, purposeful bursts.
Bar spacing of about half an inch is the safe standard for a linnie's head, and horizontal bars are not a cosmetic preference here. Lineolated parakeets climb bar-by-bar using beak and feet, walk along the cage ceiling upside down, and descend headfirst to a dish, so a cage with horizontal bars on all sides doubles as their exercise equipment. Vertical-only bars on a wide cage still work for flight, but the bird loses half the activity the cage was bought to provide.
Furnish for climbing, burrowing, and short flights
Layer the cage in zones: climbing branches and a rope or natural perch network around the sides, one clear flight line kept open between two end perches, and a cosy, dim corner at floor or shelf level. Linnies have an unusual fondness for burrowing into folds, towels, and enclosed hideaways, so a small hide or tent in that corner will be used daily, and any fabric you offer must be checked often for chewed, fraying threads that can trap a foot.
Place food and water where a climbing bird can reach them without crossing the favourite roost's droppings, and expect a linnie to bathe with enthusiasm in a wide, shallow dish or under a gentle mist. Because these parakeets move deliberately and spend long periods exploring at walking pace, small foot toys and foraging items scattered at floor level get far more use than a single large hanging toy in the centre.
One linnie, a pair, and time outside the cage
A single linnie in the minimum cage needs generous daily out-of-cage time and close human company, because this is a social species that bonds strongly; a pair in a flight cage entertains each other through the climbing and burrowing routines a lone bird directs at its owner. Either way, out-of-cage space should include a play area at table or stand height with branches to climb, since a linnie let loose will otherwise climb curtains, shelving, and any fabric it can reach.
Linnies are quiet, gentle birds that rarely suit a mixed cage with more boisterous parakeets, which outcompete them at dishes and unsettle their slow routines. Separate housing, or a shared aviary only with similarly calm small species and multiple feeding stations, keeps a linnie's cage the peaceful territory it expects.
Confirm the cage against the bird, not the label
In the shop, look past cages labelled for parakeets generally and check this bird's specifics: half-inch spacing measured yourself, horizontal bars, a door large enough to retrieve a calm bird without a chase, and width you have verified with a tape. Record the confirmed width, spacing, and hide placement in the linnie's own notes, since with KinsLe's Transferrable Profiles a lineolated parakeet that changes homes can pass on the wide, climbable setup it knows, instead of being rehoused by guesswork in whatever cage is spare.