This is Stuart, for the last couple of weeks he has spent most of his day staring at himself in my office window.
He won't move, even if I go close up to the window or tap on it. If I pull up the blinds he starts to get very excited (even though that reduces the reflection) and will tap on the window.
If some females come up he will chase them around for a bit but will return to the window. If I go out he won't budge. I know they are not the brightest of creatures but we are starting to worry about him.