It is an automata. It automatically produces categories of the real. The precise mechnanism inside the tiny shell is a remarkable system of gears and jewels that produce a response we call automatic insofar as it is without interference, except that we may have to wind it. A bird is not lost to the automata. Nothing in nature is taken away.
Nothing is subsumed.
The automata must follow the laws of nature. It is a victim of the very same things as all birds. It will eventually stop, and it will rust and its metals will corrode and their molecular structure will break down. The automata emphasizes the real by its mimicry. The simulacra strips the real of its integrity so that the original becomes automata.