Great Blue Heron

Wading Birds & Marsh Birds

Great Blue Heron

Ardea herodias

The largest heron in North America, standing motionless at the water's edge before striking at fish with lightning speed. It flies with slow wingbeats and its neck folded back.

How to identify it

  • Tall, blue-gray heron with a long neck and legs
  • White face with a black stripe above the eye ending in plumes
  • Thick, dagger-like yellowish bill
  • Flies with neck tucked in an S-curve and legs trailing
  • Deep, croaking "frahnk" when disturbed
SizeLarger than a Canada Goose
American Robin10 in
American Crow19 in
Canada Goose37 in
Great Blue Heron46 in
6 inAverage length, bill to tail

Details

Size
38โ€“54 in long; wingspan 66โ€“79 in
Weight
4.6โ€“5.5 lb
Habitat
Marshes, shorelines, rivers, ponds and wet fields
When to see it
Year-round across most of the US
Diet
Fish, plus frogs, snakes, crayfish and small mammals

Range in the United States

Range map of Great Blue Heron
Range data: USGS Gap Analysis Project (public domain). Lower 48 states. Ranges change over time.

Life history

Food

Stands still or walks slowly in shallow water, striking fish with its bill. Also eats frogs, snakes, crayfish, rodents and even small birds.

Nesting

A large platform of sticks high in trees, usually in colonies called rookeries.

Clutch
2โ€“6 eggs
Incubation
about 27 days
Young
Fledge at about 2 months
Broods
1 per year

Behavior

Hunts day and night. Its special neck vertebrae let it strike with lightning speed.

Conservation

Common and widespread; stable overall.

Cool facts

  1. Despite standing up to 4.5 feet tall, it weighs only 5โ€“6 pounds thanks to hollow bones.
  2. Rookeries can contain hundreds of nests.
  3. Great Blue Herons can swallow fish much wider than their own neck.

Songs & calls

โ–ถBird sounds video coming soon

Watch the Great Blue Heron

โ–ถVideo coming soon

Photo gallery

Photo: Acarpentier ยท CC BY 3.0 ยท via Wikimedia Commons
Photo: Rhododendrites ยท CC BY-SA 4.0 ยท via Wikimedia Commons
Photo: Acarpentier ยท CC BY 3.0 ยท via Wikimedia Commons
Photo: Dori ยท CC BY-SA 3.0 ยท via Wikimedia Commons
Photo: Christian Mehlfรผhrer, User:Chmehl ยท CC BY 2.5 ยท via Wikimedia Commons
Photo: Rhododendrites ยท CC BY-SA 4.0 ยท via Wikimedia Commons
Photo: Fabian Roudra Baroi ยท CC BY-SA 4.0 ยท via Wikimedia Commons
Photo: Paul Danese ยท CC BY-SA 4.0 ยท via Wikimedia Commons
Photo: Paul Danese ยท CC BY-SA 4.0 ยท via Wikimedia Commons
Photo: Paul Danese ยท CC BY-SA 4.0 ยท via Wikimedia Commons
1 / 10

Similar species