Black-headed Heron vs Great Blue Heron
Ardea melanocephala 比較対象 Ardea herodias
Side-by-Side Comparison
| 属性 | Black-headed Heron | Great Blue Heron |
|---|---|---|
| 学名 | Ardea melanocephala | Ardea herodias |
| 目 | Pelecaniformes | Pelecaniformes |
| 科 | Ardeidae | Ardeidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 117.0 cm (46.1 in) |
| 翼開長 | 78.3 cm (30.8 in) | 183.0 cm (72.0 in) |
| 体重 | 1355.0 g (47.80 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 | 2-6 | 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
Black-headed 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
Black-headed Heron
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
保全状況
Black-headed Heron
Great Blue Heron
How to Tell Them Apart
Black-headed 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
Black-headed Heron
クロエリサギは、黒い頭部と後頚・灰色の体・白い喉と前頚のコントラストが特徴的な大型のサギ。サハラ以南のアフリカ全域に分布し、草地・湿地・農耕地・開けた場所に生息し、他のサギと比べ水辺から離れた場所でも見られる。昆虫・カエル・齧歯類・小鳥を、静止または歩いて追いながら捕食する。
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.