It is spread out from southeast Alaska, northern Alberta, central Manitoba,Ontario, southern Quebec and the Canadian Mari-times south through the United States to northern South America and the Galapagos Islands. So this specie is very developed in the western countries.
The heron is being threatened by the humans and the predators. Humans are constructing on near their habitats. Predators eat their eggs or new born chicks and some eat the grown heron. The predators: eagles crows ravens vultures hawks raccoons bears