Down Feather Structure Varies Between High And Low Elevation Male Andean Torrent Ducks (Merganetta armata)
Rebecca G. Cheek, Luis Alza, Kevin G. McCracken
The study compares down and contour feather structures between high- and low-elevation male Andean Torrent Ducks, finding significant differences in down feathers but not contour feathers.
bioRxiv · Nov 8, 2017 · PreprintZoology