Field Guide/Birds/Aquila chrysaetos

2004-03-11T16:15:56Z

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{| border=1 cellspacing=0 align=right cellpadding=2 width=233
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!bgcolor=pink| Golden Eagle
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|align=center| [[image:goldie.JPG|Golden Eagle]]
|-
!bgcolor=pink| [[Scientific classification]]
|-
|
{| align=center
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| [[Kingdom (biology)|Kingdom]]:
| [[Animal]]ia
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| [[Phylum (biology)|Phylum]]:
| [[Chordate|Chordata]]
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| [[Class (biology)|Class]]:
| [[Aves]]
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| [[Order (biology)|Order]]:
| [[Ciconiiformes]]
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| [[Family (biology)|Family]]:
| [[Accipitridae]]
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| [[Genus]]:
| '''''[[Eagle|Aquila]]'''''
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| [[Species]]:
| '''''chrysaetos'''''
|}
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!bgcolor=pink| [[Zoological name]]
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! ''Aquila chrysaetos''
|}

The '''Golden Eagle''' (''Aquila chrysaetos'') is one of the best known [[bird of prey|birds of prey]] in the world. It is about 90 cm in length, has a wingspan of 220 cm and a weight of 5 kg. Like all [[eagle]]s, it belongs to the family [[Accipitridae]].

Once the Golden Eagle lived in all temperate Europe, North Asia, North America, North Africa and Japan. In most areas this bird now is a mountain-dweller, but in former centuries it was also distributed in the plains and the forests.

There was a great decline in Central Europe, where the Golden Eagle now is restricted to the [[Alps]]. In [[Great Britain|Britain]], there are about 500 birds left in the Scottish highlands. In [[North America]] the situation is not as dramatic, but there has been a noticeable decline as well.

A pair of Golden Eagles build several eyries within their territory. They use them alternately for several years. The nest consists of heavy tree branches, upholstered with grass.

Old eyries may be 2 metres in diameter and 1 metre in height, as the eagles enlarge their nests every year. If the eyrie is situated on a tree it may happen that the supporting tree branches break because of the weight of the nest.

The female lays two eggs between January and May (depending on the area). After 45 days the youngs hatch. They are entirely white and are fed for fifty days , then they are able to make the first flight attempts and eat on their own. In
most cases only the older young survives, while the younger one dies before leaving the eyrie.

The couple remains together for life. They often have a division of labour while hunting: one partner drives the prey to the lurking other one. The prey is [[marmot]]s, [[hare]]s and [[mouse|mice]], sometimes [[bird]]s, [[marten]]s, [[fox]]es and young [[deer]]. Large [[mammal]]s like [[chamois]] or adult deers can only be taken if they are wounded or sick.

In Central Asia, Golden Eagles sometimes are trained for [[hawking]], and in [[Kazakhstan]] there are still hunters using these eagles in order to catch deer and antelopes.

<br clear=all>

[[Image:Golden_Eagle_(small_illustration).jpg|thumb|]]

There are five [[subspecies]] of Golden Eagle:

* '''Eurasian Golden Eagle''' (''A. c. chrysaetos'')
* '''American Golden Eagle''' (''A. c. canadensis'')
* '''Spanish Golden Eagle''' (''A. c. homeryi'')
* '''Japanese Golden Eagle''' (''A. c. japonica'')
* '''Russian Berkut''' (''A. c. daphanea'')

[[da:Kongeørn]] [[de:Steinadler]] [[eo:Regxa aglo]] [[ja:イヌワシ]] [[sv:Kungsörn]]

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Field Guide/Birds/Aquila chrysaetos