Head to head
Grey Heron vs Great Blue Heron
The grey heron and great blue heron occupy strikingly similar ecological roles on opposite sides of the world, both large, patient hunters of shallow water.
| Grey Heron | Great Blue Heron | |
|---|---|---|
| Scientific name | Ardea cinerea | Ardea herodias |
| Native range | Europe, Asia, Africa | North and Central America |
| Relative size | Large | Larger, North America's largest heron |
| Neck strike mechanism | Rapid strike | Specialised spring-like sixth vertebra |
| Nesting | Colonial heronries | Colonial heronries |
| Conservation status | Least Concern | Least Concern |
| Population trend | Stable | Stable |
| Habitat | Wetlands, coastal | Wetlands, coastal |
Grey Heron vs Great Blue Heron: common questions
Are the grey heron and great blue heron the same species?
No, they are distinct but closely comparable species that occupy similar ecological roles, with the grey heron native to Europe, Asia, and Africa and the great blue heron native to North and Central America.
Which is bigger, the grey heron or the great blue heron?
The great blue heron is bigger, holding the title of North America's largest heron, while the grey heron, though also a large bird, is somewhat smaller overall.
Do both herons hunt the same way?
Yes, both species hunt using a similar patient, motionless stance followed by a rapid strike, though the great blue heron's strike is powered by a specialised, spring-like sixth neck vertebra that lets it fire its head forward almost too quickly to see.