Why a cockatoo needs permission in writing, not just a phone number
A fortnight is long enough for real trouble to find a cockatoo: a broken blood feather that will not stop bleeding, a fall from a play stand, a sudden refusal to eat, or a breathing change that cannot wait until you are home. Many clinics will examine a bird in distress, but a carer who is not the owner can still face delays when decisions and payment are discussed. A short signed letter removes that friction in advance, proving the carer speaks for you and that emergency care should start on their word.
What the permission letter itself must say
Keep the letter to one page, written in your own name and signed and dated by you. Name the carer in full, describe the cockatoo by species, colour, and any leg band or microchip details, and give the dates of the stay. State clearly that the carer may consent to emergency examination, diagnostics, and stabilising treatment for the bird, name your usual avian vet and practice address as the first destination, and name an emergency or out-of-hours clinic as the backup if yours is closed. Add your phone number, a second contact who can reach you, and a sentence about money: that the carer may pay for urgent care and you will reimburse them in full, or that the practice should call you for card payment, whichever arrangement you have actually agreed with the clinic.
The history sheet that travels with the letter
A vet meeting a cockatoo for the first time needs the story behind the bird, so attach a single history sheet. Cover the bird's age and sex if known, its normal diet and current weight if you track it, past illnesses or injuries, any ongoing issues the vet already manages, and the medicines or supplements the bird currently receives, described just as your vet has labelled them. Note behaviour that matters in a clinic: whether the cockatoo steps up for strangers, panics at towels, or has a bite history, because that shapes how staff handle a large, powerful beak safely. Finish with what normal looks like at home, appetite, droppings, noise, and sleep, so the carer and vet can judge change against the bird's own baseline.
Agreeing the plan with the carer and the clinic before you go
Do not let the letter be a surprise to anyone. Call your vet practice, tell them the dates and the carer's name, and ask whether they want the letter on file in advance; many practices are glad to scan it into the bird's record. Give the carer the original letter and history sheet, keep photographs on your phone, and email copies so a lost folder never means lost permission. Walk the carer through the two or three emergencies most likely with this bird, where the travel carrier lives, and how to get the cockatoo into it calmly, because permission on paper is useless if the bird cannot be caught and carried safely.
The check-in rhythm during the fortnight
Agree brief daily updates, a photo or a few lines, so small changes are caught while they are still small: eating less, sleeping more, a quieter morning than usual. Tell the carer explicitly that you would rather pay for one unnecessary visit than hear after the fact that they waited, and that calling the vet for advice counts as good caring, not overreacting. When you return, collect the letter back or confirm it is destroyed, and thank the clinic if they were involved. Travelling owners find it simplest to keep the signed letter, the history sheet, and the clinic contacts together in the bird's KinsLe Pet Passport, so the carer has one portable packet to hand over at reception.