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I agree with Travis. It is also the right season for the Fox Sparrow to be in Virginia. It is also one of the "bigger-boned" sparrows. http://identify.whatbird.com/obj/145/_/F...
I'm pretty confident it is a thrasher, and possibly a Brown Thrasher. You can check here: http://www.allaboutbirds.org/guide/Brown... to hear its song, maybe that will help. Good Luck!