So, emus range over most of Australia. The parts they avoid are the tops of the mountain ranges -- Australia has massive amounts of 'Swiss Alps' -- and the worst of the deserts, in the middle. And the tropical rainforests of Cape York -- cassowary country.
https://www.outback-australia-travel-secrets.com/image-files/australian-deserts.jpg
There's a sort of trick when you look at the list of the world's biggest baddest deserts. Australia's are quite arbitrarily named as separate, but the map shows that they are, in effect, one massive desert.
The
Rothschildi -- the sub-species we observe here at Planet
Rothschildi -- are the lucky ones. Their habitat is the bottom left corner of the state, relatively good country. We have no data whatsoever on how many/if any perish during the Big Jump of bad years.
Over on the border of the National Park, however, we have found some poops that suggest that the emus in question were doing it very very hard.
What we can be sure about is that if we observed emus in the
woodwardi territory, the north of W.A., we'd see a different 'equation.' Have a look at the travelgumbo link.
[And here in brackets, what fun to tease Texans, the folks from the big state! W.A. is three times the size, and our population density is 8% that of Texas -- yep. There are 12 times as many people per square mile in Texas as here.]