Black Swan vs Great Blue Heron
Cygnus atratus compared with Ardea herodias
Side-by-Side Comparison
| Attribute | Black Swan | Great Blue Heron |
|---|---|---|
| Scientific Name | Cygnus atratus | Ardea herodias |
| Order | Anseriformes | Pelecaniformes |
| Family | Anatidae | Ardeidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 130.0 cm (51.2 in) | 117.0 cm (46.1 in) |
| Wingspan | 190.0 cm (74.8 in) | 183.0 cm (72.0 in) |
| Weight | 6200.0 g (218.70 oz) | 2400.0 g (84.66 oz) |
| Diet | Aquatic vegetation and algae, supplemented with grain and pasture grasses. Feeds by upending in shallow … | Primarily fish, also frogs, snakes, small mammals, insects, and other birds. Hunts by standing motionless … |
| Clutch Size | 4-6 | 2-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Black Swan
Lakes, rivers, swamps, and coastal waters across Australia. Also found in ornamental lakes in parks.
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
Black Swan
Gives a musical bugling 'boo-boo-boo' in flight and softer honking on water. Less vocal than Mute Swan; produces a baying call when alarmed. Wings whistle softly in flight.
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
Black Swan
Australia, primarily in the southeast and southwest. Introduced populations in New Zealand, Japan, and western Europe.
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
Conservation Status
Black Swan
Great Blue Heron
How to Tell Them Apart
Black Swan
Almost entirely black with white flight feathers visible in flight. Red bill with a white band near the tip. Dark red to reddish-brown iris.
Bright red bill with a pale tip and prominent white band
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
Black Swan
The black swan was once considered impossible by Europeans who believed all swans were white, making it a famous philosophical example of inductive reasoning failure. It is the state emblem of Western Australia. Black swans form lifelong pair bonds and both parents share in incubation and care of cygnets.
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.