Why the shoulder and the stove cannot mix
A cockatoo that rides on a shoulder feels like part of the family routine, which is exactly why the kitchen boundary is hard to hold. The risks, though, are severe and instant. A bird startled by a pan lid or a timer can flap into a pan of hot oil or a just-boiled kettle; steam alone can scald and can carry cooking fumes that a bird's breathing tolerates very poorly, and fumes from overheated non-stick coatings are dangerous to birds even at a distance. The boundary therefore cannot be 'be careful'; it has to be a place rule: when heat is on, the bird is elsewhere, every time.
Give the bird a station, not an exclusion
Boundaries fail when they only take something away. Before you cook, set up the alternative your cockatoo is meant to choose: a sturdy perch stand or play stand positioned where the bird can see you and feel included, but well away from the hob, oven, kettle and sink, ideally outside the kitchen doorway or at its farthest corner. Stock it before the bird arrives, with a fresh chew, a foot toy and a small food treat, so arriving at the stand predicts good things rather than banishment. Place the bird there as the first step of cooking, before any heat is on, with praise and the first treat, so the sequence reads as the start of a ritual rather than a rejection mid-meal preparation.
Hot drinks follow the same rule
Tea, coffee and soup are easy to underestimate because no cooking seems to be happening, yet a mug carried through a room is at exactly shoulder height, and a bird that launches toward its person can land on a hand, a rim or a lap full of hot liquid. Make drinks conditional on the bird's location: you sit down with a hot drink only when the cockatoo is on its stand, on a play gym or in its cage. If the bird flies to you while you are holding a drink, set the mug down on a stable surface first, then move the bird; never try to catch, wave off or carry a large cockatoo one-handed around hot liquid.
Handling the protests and the relapses
Expect testing. A cockatoo removed from a shoulder may call, climb down the stand and walk to the kitchen, or fly to you repeatedly for the first week. Respond with boring consistency: no scolding, no excited negotiation, just a calm return to the stand and a reward when the bird stays there briefly, gradually extending the time before the next treat. If the bird will not settle, use the cage with a good chew for that cooking session rather than a battle of wills at the stove; safety outranks training progress on any given day. Watch for the boundary quietly eroding in low-risk moments, such as the bird riding along while someone makes toast or carries washing through the kitchen, because partial rules teach a clever cockatoo that the boundary is negotiable and worth arguing with at the worst possible time.
One rule for every shoulder in the house
The plan collapses if one person becomes the exception. Partners, older children and regular visitors all follow the same sequence: bird to the stand before heat, drinks only when the bird is stationed, bird returned without fuss every time. Tell guests plainly before they offer a shoulder that the bird cannot be carried in the kitchen, and give them the stand ritual to use instead, so they still get interaction without breaking the rule. Consistency, not vigilance in the moment, is what keeps feathers away from steam. Posting the station location and the hot-drink condition on the bird's profile in KinsLe Family Sharing means anyone offering that cockatoo a shoulder knows the kitchen boundary before the kettle goes on.