Ecosanctuary general manager Chris Baillie said staff at the sanctuary were busy fencing off a 30ha area to house the new arrivals that were effectively refugees from Fiordland.
''One of the creche islands that [the Department of Conservation] runs has had a mouse plague and the mice are eating all the kiwi food, so the kiwis are going hungry.''
She said the young kiwi would have to be kept separate from the adult population, so they were building a fence.
The juvenile kiwi would all need to be brought in every six weeks for a health check and to adjust their transmitters to make sure they had not outgrown them.
''It will be a change of life for us I think here.''
The sanctuary had a scare last week when two stoats breached the 8.7km predator-proof fence.
Staff found the stoats in a network of pest traps that line the inside of the fence as a last line of defence.
Orokonui's conservation manager Elton Smith said they were not sure how the stoats gained access because the predator fence was looking good and there had been no records of mice or rats.
Ms Baillie said the stoats did not appear to have caused any damage because the ground-nesting populations of saddlebacks had not been affected.
To confirm there were no untrapped stoats inside the sanctuary, a stoat-sniffing dog - Woody - and his minder, Scott Theobold from the Doc Conservation Dog Programme took a long walk and found nothing.
Ms Baillie said stoats could cause a lot of damage, particularly to ground-nesting birds, tuataras and juvenile kiwi.
The 307ha sanctuary has 1300 tracking tunnels to monitor any pest incursions as well as the network of lethal traps inside the fence.
