Discovered this hen was tagged on 9/11/15 up in Montana at Red Rocks NWR. USGS was able to make the ID - they're some great folks working there and were quick to respond! From the USGS:
"...Her nasal marker is a unique combination of colors and shapes so we can identify her as an individual; we conduct pre-breeding and post-breeding surveys of marked females on Lower Red Rock Lake to estimate seasonal survival and factors that influence survival. We completed our 11th year of the study in 2015 and we've learned a fantastic amount of information on lesser scaup thanks to the hard work of our marked females!