Nice bokeh. Good capture of one fluffing up for a little insulation. If you go for F8 or F11 next time you might get the entire beak in focus. Just a nit pic.
Finally, after seeing many ho hum entries, something to make me sit up and look! Wonderful sharp focus, excellent exposure, depth of field. If the eye's catchlight was brighter, and the beak tip in focus, This would be just perfect. Very good work indeed.