Knob-billed duck standing on the edge of its habitat pool at Miami Metrozoo   Publication Date:   1980/2000 Creator:   Zoo Miami Format:   1 color photograph, 15 x 10 cm Subjects.Display:   Miami Metrozoo Ducks Zoo animals Zoo Miami Zoos -- Exhibition Sarkidiornis Source Institution:   Florida International University Knob-billed duck standing on the edge of its habitat pool at Miami Metrozoo