OMG! I am LAUGHING my butt off at this one -- Herbert is on the doormat looking in the sliding glass door and our younger gray cat Harley is trying to play with her through the glass -- twisting his body and turning his head and upper body upsidedown with his paws splayed out on the glass as he sort of jumps at the glass. The bird responds by pecking at the window and bobbing her head up and down and flapping her wings! Where's my video camera?!