How can we care about something that we barely see or know? This the question that the photographer Clay Bolt sets out to answer in the documentary A Ghost in the Making: Searching for the Rusty-Patched Bumble Bee. Dwindling bee populations have been highly publicized, but the insects are still not included in the United States Fish and Wildlife Service’s Endangered Species List. By traveling from state to state, Bolt tells the story of the rusty-patched bumblebee—one of 4,000 species of native bees in North America—and the scientists and conservationists working to preserve it.

The film is produced by Day’s Edge Productions and will be released to the public on June 23, 2016. You can learn more about rusty-patched bumblebees and the fight to save them here.