I remember some years ago on, I believe, Discovery channel. Some fellow in a village in Africa ,for some reason, wanted an ostrich egg.What did was he wait until Mrs. Ostrich go away and eat or drink. Well, she did.
But he had to make a good plan not to be seen by her. So his great plan was (all this was taped) get some dead bushes and branches and make it a big, ball shape costume and where it around his body. He made a staff from branch and held it up in the air to be the neck.
Now, he looks like a "real" ostrich. He, the mimic ostrich( ugly and weird creature,may I add), walk quietly to the nest. He bent down and got the egg. By that moment, Mrs. Ostrich,far away, saw him. She zoom at 200 mph to the nest,or more correctly to the mimic ostrich. The man saw her,put the egg down and ran for his life.
Of course not without some bruises.