What I find most interesting is that you apparently have a trained, pet squirrel! Seriously, though, I think the cloudy day made for a better background, even with the additional noise.
LOL. Honestly, I did a double-take when I saw him (or his cousin) on the same perch.
I agree about the background. The angle was different, too, so there were more gaps in the foliage for the second shot - and they were brighter.
@neuro: EF1.4X III seems excellent. Now, does it come bundled with EF600mm f/4L IS II ?
It should! I'm pleased with the results..I'll see how the 2xIII does tomorrow.
In fact, I'm headed to the same spot...I wonder if my friend will pose for a 2x shot.