@SivatheriumGuy Yes, I think you might be right with Johnstone's but on their own website they call them two-wattled so that is the name I used in my post. Not sure if there is a difference as I'm no expert, do you know?
Not all of hamerton’s cassowaries are Johnstone’s, I think the individual/s behind the flamingoes are two-wattled and the pair near the outback aviary are Johnstone’s
Our Johnson's Cassowaries (Casuarius casuariusjohnsonii - the Australian sub-species of the Two-wattled or Southern) are housed between (and behind) the vulture aviaries and the exit of the Outback walk-through. This pair were imported direct from Australia. They are Johnson's - not Johnstone's.
Our second pair of Cassowaries (Casuarius casuarius spp.) are housed behind the Flamingos. These birds are 'generic' Southerns, and came from Holland and the US.