Hi Larry, this sounds fun for a test to try my new Nikon TC 20E III Converter with my 70 200 Vr II and D800E. We have Snowy Egret, Pelicans and many other birds were I live. I have free time today and will go out and shoot most of the day. I use the AF-on button and VR hand held so should be fun to see what I come up with. I will post the photos later tonight.