Oml wow, they are really confident animals, that must've been a lot of hard work, it's great that your dogs were willing to work with them!At one point I owned and was breeding a total of ~100 ostriches on a 120 acre farm in Milton, ON Canada. The economics (eggs/year, mortality rate, cost per harvested pound, use of all parts/meat/feathers/skin, cost to raise/feed per pound, age to harvest etc) is pretty compelling.
As I have said before, the only issue is wrangling as you can't herd with horses and they're not afraid of you or your dog(s).y are mean and FAST. The only thing more difficult to work are buffalo. We had 3 Catahoulas that could deal with them and my GSD was brilliant around them.
And they're good eating!