The tree is metal but the bird is not. I wonder what the bird must have be thinking. Was he fooled into thinking he was in a real tree? Maybe he was hoping to find some insects. Or maybe he just didn't care, and was just looking for a place to rest his feet.
Sometime we are fooled into thinking something is real when in fact it is not. We believe in the lies that someone feeds us and we walk down the wrong path. We need to pay careful attention to our surroundings. We need to seek the councils of someone wise and who will put our best interest out there. Of course that someone is God.
When I allow God to show the way I can be sure I am not fooled. I can perched myself on a metal tree and know that it is fake.