From Opus

Ardea herodias

Photo by stejon.

[edit] Identification

The largest heron in North America
Ht. 3-4 ft
W. 6ft

• Blue-gray feathers on most of its body
• Plume of feathers on its chest and back during breeding
• Long, pointed yellow bill
• Long legs
• Adults have white on the top of their heads and long black plumes above their eyes
• Juveniles have elongated spots and stripes on their neck and upper breast area

[edit] "Great White" Heron

There is also an all white version of the Great Blue Heron, the "Great White" Heron, that can be found in southern Florida. It has yellow legs, a yellow bill and white feathers.

Great White Heron. Photo by Gary Clark
Location: Everglades National Park, Florida.

Similar to Great Egret.

An intermediate, "Würdemann's heron" should be common in southern Florida.

[edit] Distribution

It is found throughout most of North America, including Alaska, Quebec and Nova Scotia. The range extends south through Florida, Mexico and the Caribbean to South America. Very rare vagrant to the Azores and United Kingdom.

Migrates in the fall, although some stay in the northern part of their range.

[edit] Taxonomy

Five subspecies are recognized^[1]:

• A.h. fannini - SE Alaska to coastal Washington
• A.h. herodias - S. Canada to s Baja California and Central America
• A.h. wardi - S-central USA to Gulf Coast and Florida
• A.h. occidentalis - S. Florida through West Indies to islands off Venezuela
• A.h. cognata - Galapagos Islands

[edit] Habitat

Margins of lakes and slow-flowing rivers, swamps and marshes, frequently on sea-coasts, in estuaries and mangroves.

[edit] Behaviour

Usually tucks its head into an S-shape when it is resting and flying.

[edit] References

1. Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019

[edit] External Links