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Eagle

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Eagle
White-tailed Eagle in flight
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Aves
Order:
Falconiformes
Family:
Accipitridae
Genera

Several, see below.


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Description

Eagles are differentiated from other broad-winged birds of prey mainly by their larger size, more powerful build, and heavier head and bill. Even the smallest eagles, like the Booted Eagle (which is comparable in size to a Common Buzzard or Red-tailed Hawk), have relatively longer and more evenly broad wings, and more direct, faster flight. Most eagles are larger than any other raptors apart from the vultures.

Like all birds of prey, eagles have very large powerful hooked beaks for tearing flesh from their prey, strong legs, and powerful talons. They also have extremely keen eyesight to enable them to spot potential prey from a very long distance. This keen eyesight is primarily contributed by their extremely large pupils which cause minimal diffraction (scattering) of the incoming light.

In Britain before 1678, Eagle referred specifically to the Golden Eagle, the other native species, the White-tailed Eagle, being known as the Erne. The modern name "Golden Eagle" for Aquila chrysaetos was introduced by the naturalist John Ray.

Eagles build their nests, which are sometimes called eyries in tall trees or on high cliffs.

Eagles are sometimes used in falconry. They appear prominently in myth and literature. In the Old World, such references are commonly to the Golden Eagle (or possibly closely related species found in warm climates).

Thermographic image of an eagle, thermoregulating using his wings

Taxonomy

Major new research into eagle taxonomy suggests that the important genera Aquila and Hieraaetus are not composed of nearest relatives, and it is likely that a reclassification of these genera will soon take place, with some species being moved to Lophaetus or Ictinaetus.[1]

Species

FAMILY ACCIPITRIDAE

File:Harpy Eagle2.JPG
The powerful Harpy Eagle can easily grab a monkey weighing 5 kg and fly away with it.
A Steppe Eagle in Lahore Zoo.
A dark individual of the Short-toed Eagle.

Eagles in culture

The word

The modern English name of the bird is derived from the Latin term aquila by way of the French Aigle. The Latin aquila may derive from the word aquilus, meaning dark-colored, swarthy, or blackish, as a description of the eagle's plumage; or from Aquilo, the Latin version of Greek Boreas, or north wind.

Old English used the term Earn, related to Scandinavia's Ørn. The etymology of this word is related to Greek ornos, literally meaning "bird". In this sense, the Eagle is the Bird with a capital B.

Eagles as national symbols

File:Berg en Terblijt (Weapon).png
Coat of arms of the town of Berg en Terblijt in the Netherlands, an example of the prolific use of the eagle in European heraldry.
Napoleonic eagle

The eagle has been used by many nations as a national symbol, depicting power, beauty and independence.

Eagles as religious objects

In Jewish tradition the eagle is a symbol of greatness, and leaders such as the medieval sage Maimonides and the Lubavitcher Rebbe, Rabbi Menachem M. Schneerson, have been referred to by their peers and students as "The Great Eagle". The Torah compares God Himself to an eagle in Deuteronomy, 32.11-12. "As an eagle awakens its nest, hovering over its fledglings, it spreads its wings, taking them and carrying them on its pinions. [So] the Lord guided them [the Israelites] alone, and there was no alien deity with Him."

Eagle lecterns are very common in Christian churches and cathedrals. The eagle is the symbol used to depict John the Apostle, whose writing most clearly witnesses the light and divinity of Christ. In art, John, as the presumed author of the Gospel, is often depicted with an eagle, which symbolizes the height he rose in the first chapter of his gospel. See Names of John.

The eagle is a sacred bird in some cultures and the feathers of the eagle are central to many religious and spiritual customs, especially amongst Native Americans. Native Americans revere eagles as sacred religious objects and the feathers and parts of Bald and Golden Eagles are often compared to the Bible and crucifix. Eagle feathers are often used in various ceremonies and are used to honor noteworthy achievements and qualities such as exceptional leadership and bravery.

Despite modern and historic Native American practices of giving eagle feathers to non-Native Americans and Native American members of other tribes who have been deemed worthy, current United States eagle feather law stipulates that only individuals of certifiable Native American ancestry enrolled in a federally recognized tribe are legally authorized to obtain eagle feathers for religious or spiritual use.

Eagles as organizational symbols

References

  1. ^ Lerner, H. R. L. (2005). "Phylogeny of eagles, Old World vultures, and other Accipitridae based on nuclear and mitochondrial DNA". Molecular Phylogenetics and Evolution (37): 327–346. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  2. ^ Bunce, M. (2005). "Ancient DNA Provides New Insights into the Evolutionary History of New Zealand's Extinct Giant Eagle". PLoS Biol. 3 (1). doi:10.1371/journal.pbio.0030009. Retrieved 2006-12-27. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)CS1 maint: unflagged free DOI (link)
  3. ^ Roach, Steven (Jan. 10, 2000). "A History and Interpretation of Bela Lyon Pratt's Indian Designs". Professional Coin Grading Service. Retrieved 2007-01-02. {{cite web}}: Check date values in: |date= (help)
  4. ^ "New Washington Quarter Has Wrong Species of Eagle". Science News (Sept. 3, 1932). Retrieved 2007-01-02.
  • Splitting headaches? Recent taxonomic changes affecting the British and Western Palaearctic lists - Martin Collinson, British Birds vol 99 (June 2006), 306-323
  • Bruguier, Leonard.A Warrior's Eagle Feather

See also

Look up eagle in Wiktionary, the free dictionary.
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