Great Blue Heron
Ardea herodias
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<birdfyi-bird slug="great-blue-heron"></birdfyi-bird>Blue-grey with a white, black-striped head and a long, dagger-like bill, the Great Blue Heron is a patient ambush hunter that stands motionless in shallow water before striking with lightning speed. Fish form the bulk of its prey, along with frogs, snakes, small mammals, insects, and other birds. In flight the neck folds into an S, and rufous thighs complete the unmistakable profile. It frequents marshes, swamps, riverbanks, lake edges, and coastal shores, and also hunts in fields and meadows, from Alaska and southern Canada to the Caribbean and the Galapagos. Platform nests hold two to seven eggs, incubated for 25 to 29 days, with young fledging near 60 days. For so large a wader it is mostly silent, giving a deep, harsh croak in flight. It is assessed as Least Concern.
について
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.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| Body Length | 117.0 cm | 46.1 in |
| 翼開長 | 183.0 cm | 72.0 in |
| 体重 | 2400.0 g | 84.66 oz |
識別
羽毛
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.
くちばし
Long, dagger-like yellowish bill
Habitat & Range
Wetlands of all types including marshes, swamps, riverbanks, lake edges, and coastal shores. Also hunts in fields and meadows.
分布域
North and Central America from Alaska and southern Canada to the Caribbean and Galapagos Islands.
Diet & Feeding
Primarily fish, also frogs, snakes, small mammals, insects, and other birds. Hunts by standing motionless in shallow water and striking with lightning speed.
保全状況
行動と繁殖
営巣
Nest type: PL. Incubation: 25-29 days. Fledging: 60 days.
一腹卵数
2-7
鳴き声
さえずり
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.
分類学
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| 目 | Pelecaniformes (Pelicans & Herons) |
| 科 | Ardeidae (Herons & Egrets) |
| Genus | Ardea |
| 種 | Ardea herodias |
Names in Other Languages
| Language | Name |
|---|---|
| German | Kanadareiher |
| Spanish | Garza Azulada |
Distribution
Great Blue Heron has been recorded in 9 countries.
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External Databases
よくある質問
What does the Great Blue Heron eat?
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Similar Birds
Other species in the Ardeidae family