Here I have attempted to make a complete list of herons, ibises, and spoonbills present in American and Canadian collections. Only information 2017 or newer was used. Information on missing holders or species, as well as information on subspecies or populations is welcomed.
Boat-billed Heron...
In 2013, the ZOO's swamp exhibit called 'Hippotopia' was re-opened after renovations. In 2014 or 2015, the great cormorants moved from an other enclosure to this one. The platform which can be seen in the picture offers the best view. The cormorants are often joined by wild grey heron.