D7000 + Nikkor 800mm f/5.6 ais + TC16A + Beanbag + 3 burst shots. The bird was at ~ 18m.
Though support was not ideal for a 1280mm telephoto, a burst of 3 shots/second produced at least one sharp image.
Thanks Zichar and robert829 for the „warm welcome”. I really like the wide variety of images here. I'm especially impressed by the superb nature-captures.