a shot from today and the red background is an out of focus pillow about 15 feet behind the bird. I put it there for a contrasting background and the very shallow depth of field awarded by my 500 mm lens and extender blurred out any details in the pillow. Also attached between the lens and camera was an extension tube which allowed me to get closer than the usual 12 feet minimum focusing distance on the lens so there is a minimal crop here for composition and to eliminate part of the feeder that was attracting the bird.