Vey nice moving bird at 400mm. With the D200 and the same lens and TC ll, I don't seem to get good results, even on a tripod and stopped using it for small birds. Instead I use the Nikon 300mm f4 (old version Non "s", waiting for the kenko pro 1.4 TC ordered in HK) or the Tamron 200-500.
Enjoyed your gallery. Peter