Yup, BBK, that's a wingbone yelper. They are easy to make. The Native Americans used them, though they usually just used the first, smallest wingbone, sometimes with a few holes to change pitch. You make kissing sounds into the end. Nowadays people epoxy at least one or two more wing bone pieces so it has a bell on it. They can be scrimshawed too.
My main interest is recreating peculiar bone tubes that I believe were quena-type flutes. They are often in museum collections as misc. bone tubes. I try to use stone tools so that archaeologists can study the way a blowing edge is modified. I also keep examples of naturally chewed or abraded flute-like bones I find in the woods so I can show them the same shapes that aren't flutes. If any of that makes sense...