Western Cattle Egret vs Great Blue Heron
Bubulcus ibis 比較対象 Ardea herodias
Side-by-Side Comparison
| 属性 | Western Cattle Egret | Great Blue Heron |
|---|---|---|
| 学名 | Bubulcus ibis | 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 | 48.9 cm (19.3 in) | 183.0 cm (72.0 in) |
| 体重 | 385.68333333333334 g (13.60 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 | 1-9 | 2-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
共通生息地
Western Cattle Egret only
Great Blue Heron only
None
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
Western Cattle Egret
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
Western Cattle Egret
Great Blue Heron
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
保全状況
Western Cattle Egret
Great Blue Heron
How to Tell Them Apart
Western Cattle Egret
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
Western Cattle Egret
アフリカ原産だが現在は世界中の熱帯・亜熱帯に広く分布する小型のシラサギ（体長45〜52cm）。純白の体と黄色い嘴が特徴で、繁殖期には橙色の飾り羽が生える。Bubulcus ibis（アマサギ）は家畜の後について虫を食べることで有名で、20世紀に自力で世界中に分布を拡大した希有な例。Ardeidae科。
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.