The much-needed aviary had to be four metres high by four metres wide by eight metres long to meet regulations for birds of prey.

It also had to be portable so different people could take on the responsibility of caring for the recovering birds of prey.

The wildlife rescue organisation had been planning to fund raise for the aviary and had approached several local clubs, but recently decided the need was so urgent they would go ahead and buy it out of general funds, and raise money later.

It cost more than $10,000 to buy the demountable frame and cover it with shade cloth.

Each side of the frame will be made to detach from the others for transportation.

Bird coordinator Cara Lee said having the aviary set up would make a huge difference to the birds in care and the volunteers looking after them.

"This size aviary will let us see whether the birds can fly properly before we release them," she said.

"In the past we've had to release ones where we weren't sure whether they could fly properly or not."

Ms Lee designed a fundraising thermometer to keep track of the money coming in for the aviary, and other projects in the future.