Neither are skunks, raccoons, nor macaws domesticated as a species; but like many other non-domesticated species, individuals will typically turn out the way they were raised. Of course an emu outside from day 4 isn't remotely domesticated, and like a wild bird or wild raccoon wouldn't react well inside or being walked or greeting strangers. But my emu was raised inside with me in a sitting room (with dozens of beach towels covering every surface, and 10 loads of laundry per day) with dogs and cats and other people, and loves people and other animals and plays with a xylophone and other toys. He's highly attuned to sounds, but interested in them, not startled by them. His first few months, when a dog would bark or other loud sound, he would instantly look at my eyes to see how I reacted. I wouldn't react, and he lost the "startle" response. He jumps and runs outside from excitement and fun, not fear.