yeah, looks like mallard flank or maybe even woodduck flank (though not full plumage) on the cheeks or side of the wing. looks like a mylar collar (not seeing the body, I almost bet that that is spiraled forward as a rib through the chenille, yarn, or dubbing brushed body, then wrapped as a collar and tied off), and a very small amount of polar dubbing where its tied off and locks the bead in place.