Kiwi bird and its wings

I should think it would be difficult to explain the kiwi, and all flightless birds, within an ID paradigm. Was the intelligent designer being capricious, mean, hateful? Why take a perfectly good bird and chop off its wings?In an evolutionary paradigm the kiwi, as with all flightless birds, makes sense. In environments where flight was of minimal to no advantage slowly losing that ability over a few hundred generations would not hamper survival and fitness. Flight is an energy intensive way to get around and is unnecessary when all you need do is amble over a few meters to the next smorgasbord in a land free from predation.