I've been swearing up and down at that miserable pied billed grebe that I've had the misfortune of encountering firstly with my 70-200mm f/2.8 VRII (not enough range) and with the 70-300mm f/4-5.6 G (still not enough range). Let's just say he is pretty much the most uncooperative little feathered lout I've had the misfortune of attempting to photograph. It could be my choice of photography venue - Green Timbers Lake or it could just be the signs that indicate no entry into the lake for any reason. However with the acquisition of the 600/4 I have been waiting for that little miserable aquatic bird to poke its head out. And it was just my luck that it was that particular day that I went with my 600/4 to Green Timbers...as I seemed to be having little luck elsewhere.
Despite the fact that this was pretty much a 90% crop, it came out just fine for web use and turned out relatively nicely. When I get the TC-14EII or the TC-17EII, I'll attempt another shot of the pied billed grebe, yet again. Finally...this shot was acceptable (though not a "for sale" type shot). So...Mr. Grebe...who's laughing now?