The Green Herons that do migrate to the Platte River are there from May to September. Also called a green heron. Almost all herons are big long legged, long necked wading birds that inhabit places throughout the world. Herons' colors include gray, blue, brown, and white. Herons favor environments where water and food are ample.
Habitats supported by lakes, marshes, rivers, and creeks are suitable for herons.
In these areas, herons feed on fish, frogs and other marine wildlife. Wading at a leisurely pace through the water, herons can be gluttonous predators. Some green backed herons winter on the coast and on the interior of the southern states. Most leave by October and do not return until March. It is a short bird, about the size of a crow that reaches from Canada to the northern parts of South America.