
Details
Great blue heron
Ardea herodias
- Size
- 0.9–1.4 m · 2.1–3.6 kg
- Diet
- Carnivore
- Activity
- Diurnal
- Sociality
- Solitary
- Lifespan
- —
A large North American heron of shorelines and wetlands, using long legs and a dagger bill to hunt in shallow water.

Details
Ardea herodias
A large North American heron of shorelines and wetlands, using long legs and a dagger bill to hunt in shallow water.
Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)
Lives along rivers, lakes, marshes, tidal flats, coasts, and mangroves, adapting to both fresh and salt water.
The back is blue-gray, the neck is long, and black head plumes trail from the crown. In flight, the neck is folded in an S shape.
It often stands alone and strikes quickly when prey comes close. During breeding, many pairs may nest in colonies.
Fish dominate the diet, with frogs, crustaceans, small mammals, reptiles, and insects also taken.
Adults build large stick nests in trees or shrubs and feed chicks by regurgitating fish and other prey.
It is common around suburban ponds and coasts, acting as a conspicuous top predator in shallow-water food webs.