Long-Tailed Duck (Clangula hyemalis). From my book "A Field Guide to Cape Cod," Yale Univ. Press. a.co/d/eK4A0sd 🧪🌿🌎🪶🐡 #wildlife #scicomm #sciviz #wildlifeart #illustration #scientificillustration #natureart #visualscicomm #sciviz #scicomm #birds #ducks