K20D does have the cropping room for using longer lens with long min focusing length. I have cropped out like 80% to get this. And instead of using longer lens , I may get away with more cropping room.
This is my attempt with a very common bird (with A300mmF4)
It is a juvenile RWBB. Hopping mad I believe
exif
iso 1600
F6.7
1/500s
Daniel