A Bird and his Shadow

We have all played with our shadows from time to time, particularly when we were children and I was delighted to discover that birds are much the same. Several days ago, when the late afternoon sunlight was pouring into the living room, I found Ernie pecking away at his shadow while perched atop a door. I imagined him thinking to himself, "what is this thing? Why does it move when I move? Is this another birdie?!@". Unfortunately, the somewhat indistinct birdie on the wall was somewhat less alluring than the camera, and he flew over to the camera, before I could get a shot of both Ernie and his shadow.