I got some help below to identify the bird here. I'm not a birder, so I had no idea what species this was. I haven't been doing too much photography lately, so this is what I have to share for now.
Canon 40D 100-400IS lens @400 f5.6 1/250s ISO 400
Posted by James Walley on August 19, 2009 at 1:48 AM
I can't be sure without knowing the size, but it looks like a Pine Sisken to me.
Posted by John Williams on August 19, 2009 at 9:44 AM
I'd suspect a Song Sparrow Ryan. That's nice and sharp. Looks like the bird is watching something intently. You must have been pretty close?
Posted by Geoff Shapiro on August 19, 2009 at 9:46 AM
If I had to take a guess, Ryan, I'd say that it was a Song Sparrow. It really is a decent image too, as all the most important features of the bird are nicely in focus and things are well exposed.
Discussion
4 repliesCanon 40D 100-400IS lens @400 f5.6 1/250s ISO 400