Male Great Spotted Woodpecker

This gorgeous male Great Spotted Woodpecker obliged this morning as it fed among the willow trunks at the edge of Stithians Reservoir. This was my first real opportunity to test the 600mm F/4. I tried using the 1.7x TC as well but the power was just too excessive so resorted to using the lens and the DX mode within the camera ie. the 1.5x converter within the D3. The images below are all original but reduced in size for the web. WB set to Cloudy. Exposure 0.0. ISO 640.