Japanese Night Heron vs Great Blue Heron
Gorsachius goisagi compared with Ardea herodias
Side-by-Side Comparison
| Attribute | Japanese Night Heron | Great Blue Heron |
|---|---|---|
| Scientific Name | Gorsachius goisagi | Ardea herodias |
| Order | Pelecaniformes | Pelecaniformes |
| Family | Ardeidae | Ardeidae |
| Conservation Status | Vulnerable | Least Concern |
| Length | — | 117.0 cm (46.1 in) |
| Wingspan | 51.4 cm (20.2 in) | 183.0 cm (72.0 in) |
| Weight | 527.0 g (18.59 oz) | 2400.0 g (84.66 oz) |
| Diet | -- | Primarily fish, also frogs, snakes, small mammals, insects, and other birds. Hunts by standing motionless … |
| Clutch Size | 3-4 | 2-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Great Blue Heron
Wetlands of all types including marshes, swamps, riverbanks, lake edges, and coastal shores. Also hunts in fields and meadows.
Song & Call Comparison
Japanese Night Heron
Great Blue Heron
Deep, harsh, croaking 'frahnk-frahnk' call in flight. Also gives low guttural grunts at the nest. Alarmed birds give repeated croaks. Mostly silent for such a large wader.
Geographic Range & Migration
Japanese Night Heron
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
Conservation Status
Japanese Night Heron
Great Blue Heron
How to Tell Them Apart
Japanese Night Heron
Great Blue Heron
Blue-grey body with a white head bearing a broad black stripe extending to a long black plume. Rufous-brown thighs. In flight, the neck is folded into an S-shape.
Long, dagger-like yellowish bill
About These Birds
Great Blue Heron
The great blue heron is the largest heron in North America, standing up to 1.4 meters tall. These patient hunters can stand motionless for extended periods before striking at prey with remarkable speed. They nest in large colonies called heronries, often returning to the same site year after year.