Emerald Bellied Pave Duck

An unsigned pin duck/bird pin that I picked up at an estate sale pinned onto a nearly shredded piece of old paper. How this pin didn't end up damaged I'll never know but it's gorgeous with a deep green belly, lighter green rhinestone eye and the rest of the body in pave and a slightly larger rhinestone "foot". I thought it was a Trifari because it has the shape of other Trifari duck pins, but no mark on the flip side.
Can someone help me identify this pin's age and maker. It was part of a lot of several other pins I bought that were Trifari (including the pave leaf I posted today).