Authored By Dylan Hammond
John James Audubon. Yellow-crowned Night-Heron (Nyctanassa violacea), Havell plate no. 336. (1831). Watercolor, graphite, pastel, black ink, collage, black chalk, and gouache with touches of white lead pigment[?], scratching out, and selective glazing on paper, laid on card. New York, NY: New York Historical Society.