I actually took this at a distance and cropped it down. I was pleased how crisp came out. Reminds me of an Audubon image. Speaking of which, I haven't been able to pinpoint the name of this fellow.
The bird is a Dickcissel, and you are right, this is a remarkably clear and colorful image. I like the way you have isolated him so that we can see him better. Wonderful capture!
Connie's right about the kind of bird, you've done an excellent job cropping and bringing this fellow up closer for us to see how beautiful he is. Gorgeous detail and capture - beautiful colours in this fellow