If they intend to import within the next 1-3 years, we can assume it’s from within the region. Australia lack a Giraffe IRA and can only import from New Zealand. None of the New Zealand zoos intend to import from outside the region to my knowledge.
The Hippopotamus IRA is currently being processed; and I’m hopeful the Giraffe IRA will be next, but who knows. Even if it is, it will be many years away. The good thing about giraffes is that long birth intervals aren’t detrimental to the cow’s reproductive health. The cows at Auckland Zoo had 8-10 years between calves while a new bull was brought in (five years after the death of the previous bull); and then took a further three years to mature. Other zoos have had similar gaps or not bred from females until they were 10 years plus.
Feasible they could import into NZ then from there to here, even with the 12month stay it would be quicker.
I feel like that is wishful thinking though, realistically they are probably waiting for a young bull that has been identified as a good match to mature. Then they will move him across. While it would be nice to see some fresh blood enter the regions population. I don't force us ever actually doing it to any great deal.