May 2002 ... my guess was a female Northern Parula Warbler.

Here's what the helpful folks at Birds and Blooms had to say:

I believe it belongs to the Wood Warbler family. It's obviously
very young which makes it hard to pin down since all the
characteristics are not completly defined yet. Sure is a cute little fellow.
He could be a Northern Parula or a Nashville Warbler; either can be
found in that area.