Australasian Bittern vs Great Blue Heron
Botaurus poiciloptilus 比較対象 Ardea herodias
Side-by-Side Comparison
| 属性 | Australasian Bittern | Great Blue Heron |
|---|---|---|
| 学名 | Botaurus poiciloptilus | Ardea herodias |
| 目 | Pelecaniformes | Pelecaniformes |
| 科 | Ardeidae | Ardeidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | 117.0 cm (46.1 in) |
| 翼開長 | 64.1 cm (25.2 in) | 183.0 cm (72.0 in) |
| 体重 | 1166.5 g (41.15 oz) | 2400.0 g (84.66 oz) |
| 食性 | -- | Primarily fish, also frogs, snakes, small mammals, insects, and other birds. Hunts by standing motionless … |
| 一腹卵数 | 4-5 | 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
Australasian Bittern
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
Australasian Bittern
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
保全状況
Australasian Bittern
Great Blue Heron
How to Tell Them Apart
Australasian Bittern
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
Australasian Bittern
オーストラリアサンカノゴイはオーストラリアとニュージーランドの淡水湿地と葦原に生息する絶滅危惧のサギ。体重約1,166.5g、翼開長64.1cm。脅かされると嘴を天に向け静止する不思議な縞状の褐色の鳥。夜間に魚・カエル・水生無脊椎動物を食べる。
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.