The flightless emus had to journey to the island continent of Australia, as did the cassowaries also. Rheas, flightless birds which occupy ecological niches similar to those of ostriches and emus, had to find their way to South America. Dozens and dozens of species of birds which can neither swim nor fly had to find their ways to the most remote islands on the planet. They had to do what lions and tigers and bears were unable to do. Not only did these unlikely travelers make it to such unlikely destinations as New Zealand and New Caledonia, they did so without ending up anywhere else.
None are to be found along the way from Turkey to South America.
We creationists accept the possibility of degenerative changes in the history of life. In fact, the story of Adam's fall and the beginning of the Second Law of Thermodynamics demand that if changes occur, they can only be down-hill. It is also curious that the parasites that went along with the kiwis are found in kiwis, but on no other species of birds anywhere else on earth. It could be pointed out that the feather louse Rallicola gadowi is found only on the kiwi Apteryx australis . The two other species of kiwi, A. haasti and A. oweni , have their own special species of Rallicola , R. gracilentus and R. pilgrimi , respectively.