I tried figuring out the species by using http://www.
This is one of the first shots I took using my newly-acquired (used) teleconverter. It works great optically and electronically. I am blessed to own a 70-200mm f/2.8, so autofocus works splendidly, though it did have some difficulty in a few challenging situations (moving train headlights, waving plants). With the 2X teleconverter you lose two stops of light, so the widest aperture available with the 70-200 was f/5.6, but that is not really much of a limitation in the daytime.
Canon 5D MarkII, EF 70-200 @200mm, Extender 2X mkII. f/9, 1/640s, ISO 400.