One of my favorite birds in the DC area has to be the American Goldfinch. With his bright yellow feathers, he always strikes me as an exotic discovery. Of course, if you look at the range map, you'll see that they are found in nearly every part of the United States. I had one perch outside my bedroom window, and he hung out there long enough for me to grab the DSLR and take dozens of photos:
The quality if pretty blah, as I was shooting through a screen window. But you can definitely see that he's a Goldfinch.
Just a friendly reminder: you don't have to go to the ends of the Earth to find amazing discoveries, sometimes you only need to look out your bedroom window.