Noisy little birdie

I saw a hummingbird on the feeder this evening, and had to take its picture.  It was getting dark outside, and I had to stay pretty far away from the feeder or I would scare it off.  So, this is a cropped shot that is a bit grainy.  The hash pattern is from the screen on the window.  I was really surprised that it showed up so strongly.

Canon 5D Mark II
Canon 24-105mm f4
47mm - ISO 100
1/320s- f/11