Gold-tone bracelet with hummingbird charm

I found a gold-tone bracelet this afternoon around 3:15pm near Grand Central Birmingham, by the entrance to New Street Station on Stephenson Street, West Midlands. It's a slim 7-inch chain with a tiny hummingbird charm and a couple of clear crystals along the links. The inside clasp has a small engraving: 'A.R.' which is a pretty distinctive feature that could help identify the owner. It looked recently dropped, sitting on the pavement near the ticket machines. If anyone recognizes it, please get in touch—I’d really like to help reunite it with its owner; it clearly has sentimental value.