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Field Guide/Birds/Aquila chrysaetos

2005-01-20T08:22:44Z

62.129.121.32:

{{Taxobox_begin | color = pink | name = Golden Eagle}}
{{Taxobox_image | image = [[Image:Goldie.JPG|Golden Eagle|200px]] | caption =}}
{{Taxobox_begin_placement | color = pink}}
{{Taxobox_regnum_entry | taxon = [[Animal]]ia}}
{{Taxobox_phylum_entry | taxon = [[Chordate|Chordata]]}}
{{Taxobox_classis_entry | taxon = [[Bird|Aves]]}}
{{Taxobox_ordo_entry | taxon = [[Ciconiiformes]]}}
{{Taxobox_familia_entry | taxon = [[Accipitridae]]}}
{{Taxobox_genus_entry | taxon = '''''[[Eagle|Aquila]]'''''}}
{{Taxobox_species_entry | taxon = '''''chrysaetos'''''}}
{{Taxobox_end_placement}}
{{Taxobox_section_binomial | color = pink | binomial_name = Aquila chrysaetos | author = [[Carolus Linnaeus|Linnaeus]] | date = [[1758]]}}
{{Taxobox_end}}

The '''Golden Eagle''' (''Aquila chrysaetos'') is one of the best known [[bird of prey|birds of prey]] in the world. 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 [[Scotland|Scottish]] highlands. In North America the situation is not as dramatic, but there has been a noticeable decline as well. Efforts are also being made to re-introduce the species in [[Ireland]], where they had been extinct since the early 20th Century. 35 birds have been released into the wild since [[2001]].

[[Image:GoldenEagle-Nova.jpg|thumb|left|200px|A five year-old American Golden Eagle.]]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 before they are able to make their first flight attempts and eat on their own. In most cases only the older chick 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 its waiting partner. 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 deer can only be taken if they are wounded or sick.

Adult Golden Eagles have an average length of 75-85 cm (30-34"), a wingspan of 175-200 cm (70-80"), and a weight of 3 to 5 kg. As in all birds of prey, the females are generally slightly larger than the males.

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

[[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]] [[fr:Aigle royal]] [[ja:イヌワシ]] [[pl:Orzeł przedni]] [[sv:Kungsörn]]

[[Category:Fauna of the Alps]]
[[Category:Eagles]]

Field Guide/Birds/Aquila chrysaetos

2005-01-20T08:21:46Z

62.129.121.32:

{{Taxobox_begin | color = pink | name = Golden Eagle}}
{{Taxobox_image | image = [[Image:Goldie.JPG|Golden Eagle|200px]] | caption =}}
{{Taxobox_begin_placement | color = pink}}
{{Taxobox_regnum_entry | taxon = [[Animal]]ia}}
{{Taxobox_phylum_entry | taxon = [[Chordate|Chordata]]}}
{{Taxobox_classis_entry | taxon = [[Bird|Aves]]}}
{{Taxobox_ordo_entry | taxon = [[Ciconiiformes]]}}
{{Taxobox_familia_entry | taxon = [[Accipitridae]]}}
{{Taxobox_genus_entry | taxon = '''''[[Eagle|Aquila]]'''''}}
{{Taxobox_species_entry | taxon = '''''chrysaetos'''''}}
{{Taxobox_end_placement}}
{{Taxobox_section_binomial | color = pink | binomial_name = Aquila chrysaetos | author = [[Carolus Linnaeus|Linnaeus]] | date = [[1758]]}}
{{Taxobox_end}}

The '''Golden Eagle''' (''Aquila chrysaetos'') is one of the best known [[bird of prey|birds of prey]] in the world. 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 [[Scotland|Scottish]] highlands. In North America the situation is not as dramatic, but there has been a noticeable decline as well. Efforts are also being made to re-introduce the species in [[Ireland]], where they had been extinct since the early 20th Century. 35 birds have been released into the wild from Scotland [[2001]].

[[Image:GoldenEagle-Nova.jpg|thumb|left|200px|A five year-old American Golden Eagle.]]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 before they are able to make their first flight attempts and eat on their own. In most cases only the older chick 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 its waiting partner. 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 deer can only be taken if they are wounded or sick.

Adult Golden Eagles have an average length of 75-85 cm (30-34"), a wingspan of 175-200 cm (70-80"), and a weight of 3 to 5 kg. As in all birds of prey, the females are generally slightly larger than the males.

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

[[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]] [[fr:Aigle royal]] [[ja:イヌワシ]] [[pl:Orzeł przedni]] [[sv:Kungsörn]]

[[Category:Fauna of the Alps]]
[[Category:Eagles]]