Will my cockatiels be ok moving to an external aviary? ?

I have 4 cockteils in a large indoor shut within. I feel though that they may be happier outside in a surrounding substance sized aviary. I live in Sydney so the weather is pretty warm. Is there a transition process i must lug so it's not too much a shock for them?
I love my birds, but they are so messy and i'd like them to have a view of the garden and be within the fresh air.
Advice would be greatly appreciated.

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if theres food and water and shelter they would be fine and they will be much happier external but might be a bit noisier. i put my 2 cockatiels in an avairy and they settled in fine. should work out

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birds hate a change in environment, but as long as they own adequate shelter, food , water, space they should be alright. it will take some time for them to adjust but it is inborn for a bird to be outside.

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Answers:    Hi,
No you are right they do need a aclimatising, just put their round up outside for a few hours per day when it is nice and then after a week release them into the aviary and they will be fine the newly need to get used to the weather and the surroundings once they know its secure they will be fine.

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Yes they should be fine, they should like the bigger nouns for them as they will think you are giving them a treat make sure they enjoy lots of shade for the hot season coming up

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