Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Okefenokee NWR, GA, June, 1993 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Wailea, Maui, Hawaii, April 8, 2012 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Wailea, Maui, Hawaii, April 8, 2012 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Baylands Nature Preserve, Palo Alto, CA, May 4, 2012 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Baylands Nature Preserve, Palo Alto, CA, May 4, 2012 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Baylands Nature Preserve, Palo Alto, CA, May 4, 2012 © Donald H. Gudehus

Nycticorax nycticorax hoactli (Gmelin, 1789) - The Black-crowned Night Heron Baylands Nature Preserve, Palo Alto, CA, May 4, 2012 © Donald H. Gudehus