Patience
The cat was sitting on the foot of the bed when he noticed movement on the wall across from him. What he was looking at intently was a reflection of the tree in the back yard fluttering in the wind. It looked like a living sepia toned portrait that was alive.
Suddenly a bird flew into the tree outside and the shadow perfectly reflected the movement of the bird. The cat immediately sat up staring at the wall. The next thing I knew he had jumped down from the bed and was crouched at the base of the wall, staring up at the reflection of the bird. After about a minute, a cloud cast a shadow over the sun that obscured the reflection on the wall. The cat continued to stare at the wall, waiting for the reflection to return. For almost two minutes the cat focused all his attention on the location where the reflection had been. I was impressed by his patience and his ability to focus, just to catch a moving shadow.
The strings that appear in the reflection are the Christmas lights. Yes, I keep them up year round, but only in the back of the house. It is fun to turn them on occasionally to provide a party-like atmosphere.