upperwing
The upper part of a wing of a bird or butterfly
Noun
- The upper part of a wing of a bird or butterfly
- The original article (which see) mentions that the primary shafts on the upperwings lacked any whitish coloration. - 2015, Bob Flood, Ashley Fisher, Martin Elliott, Pterodroma Petrels: North Atlantic Seabirds:
Origin
From upper + wing.