This Catbird was taken using my car as a blind, resting my lens on a beanbag on the window sill. I made some basic adjustments in Lightroom, and in Photoshop sharpened the bird and reduced noise in the background. I toyed with the idea of removing the darker section in the background on the left (which would be easy enough), but left it in to add a bit more depth and character to the background.
Canon 7DII
500 f4 #@ f5
ISO 400
1/500 sec
Simon