Picture's fuzzy but it looks like it says Laurel MD, which is the bird banding laboratory (BBL). Go to their website and report the number. Interesting to know what it was put on and when.

I figured you'd found some ancient tools. That was a thread.

have you ever found it 15 yards from the bird you shot?
makes you wonder...

Pellet hit the band. Maybe a different bird lost it. Still interesting to find out the details.