This large piece represents about one tenth of all the bird families in the world. Carved into each feather is a bird or birds from a different family. The left row shows more or less the earliest existing birds to evolve; the right row shows the latest. The top row of cut out birds are loosely the highest flyers, the bottom row are the lowest.
This was commissioned by a natural history museum in late 2017 so the piece has a lined-up row feeling of a museum specimen collection.