^
unless you are able to get in really close 70-200 in my opinion doesn't cut it. Sometimes its enough other times its not. I got lucky a few times with my 18-200 VR though.
This was three feet away at one of the little flat bird feeders close to the first bird blind on the trail at Reifel. I find it really tough with my 300mm f4. I get so much vibration either from my hands or my crappy Manfrotto tripod. Whatever it is.. it sucks! I took about 30 shots of this Black Capped Chickadee until I finally got him crisp...
