DC -- Natl Zoological Park -- American Bison:
[1] SINZBI_160527_06.JPG
  (Bigger?)
[2] SINZBI_160527_13.JPG
  (Bigger?)
[3] SINZBI_160527_16.JPG
  (Bigger?)
[4] SINZBI_160527_22.JPG
  (Bigger?)