గద్ద

గద్ద
White-tailed Eagle in flight
Scientific classification
Kingdom:	ఏనిమేలియా
Phylum:	కార్డేటా
Class:	పక్షులు
Order:	ఫాల్కనీఫార్మిస్
Family:	ఏక్సీపెట్రిడే
ప్రజాతులు
Several, see text.

గద్ద లేదా గ్రద్ద (ఆంగ్లం Eagle; సంస్కృతం: గృధ్రము) ఒకరకమైన పక్షులు. ఇవి ఫాల్కనీఫార్మిస్ క్రమంలో ఏక్సీపెట్రిడే కుటుంబానికి చెందినవి.

ఇందులోని సుమారు 60 జాతులలో ఎక్కువగా యూరేసియా మరియు ఆఫ్రికా ఖండాలలో కనిపిస్తాయి. ఒక రెండు జాతులు (బాల్డ్ గద్దలు మరియు గోల్డెన్ గద్దలు) మాత్రమే అమెరికా మరియు కెనడా లో, తొమ్మిది జాతులు మధ్య మరియు దక్షిణ అమెరికాలోను మరియు మూడు జాతులు ఆస్ట్రేలియాలోను కనిపిస్తాయి.

జాతులు

దస్త్రం:Martial Eagle in Namibia.jpg

Martial Eagle in Namibia.

Thermographic image of an eagle, thermoregulating using its wings.

Philippine Eagle, Pithecophaga jefferyi in Southern Philippines.

Wedge Tailed Eagle in Australia.

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.

• Bonelli's Eagle, the Booted Eagle and the Little Eagle have been moved from Hieraaetus to Aquila.
• Either the Greater Spotted Eagle and Lesser Spotted Eagle should move from Aquila to join the Long-crested Eagle in Lophaetus, or, perhaps better, all three of these species should move to Ictinaetus with the Black Eagle.
• The Steppe Eagle and Tawny Eagle, once thought to be conspecific, are not even each other's nearest relatives.

FAMILY ACCIPITRIDAE

• Subfamily Buteoninae - hawks (buzzards), true eagles and sea-eagles
  • Genus Geranoaetus
    • Black-chested Buzzard-eagle, Geranoaetus melanoleucus
  • Genus Harpyhaliaetus
    • Crowned Solitary Eagle, Harpyhaliaetus coronatus
    • Solitary Eagle, H. solitarius
  • Genus Morphnus
    • Crested Eagle, Morphnus guianensis
  • Genus Harpia
    • Harpy Eagle, Harpia harpyja
  • Genus Pithecophaga
    • Philippine Eagle, Pithecophaga jefferyi
  • Genus Harpyopsis
    • New Guinea Eagle, Harpyopsis novaeguineae
  • Genus Oroaetus
    • Black-and-chestnut Eagle, Oroaetus isidori
  • Genus Spizaetus
    • Cassin's Hawk-eagle, Spizaetus africanus
    • Changeable Hawk-eagle, S. cirrhatus
    • Mountain Hawk-eagle, S. nipalensis
    • Blyth's Hawk-eagle, S. alboniger
    • Javan Hawk-eagle, S. bartelsi
    • Sulawesi Hawk-eagle, S. lanceolatus
    • Philippine Hawk-eagle, S. philippensis
    • Wallace's Hawk-eagle, S. nanus
    • Black Hawk-eagle, S. tyrannus
    • Ornate Hawk-eagle, S. ornatus
    • Black-and-white Hawk-eagle, S. melanoleucus
  • Genus Lophaetus
    • Long-crested Eagle, Lophaetus occipitalis - possibly belongs in Ictinaetus
  • Genus Stephanoaetus
    • Crowned Hawk-eagle, Stephanoaetus coronatus
  • Genus Polemaetus
    • Martial Eagle, Polemaetus bellicosus
  • Genus Hieraaetus
    • Ayres' Hawk-eagle, Hieraaetus ayresii
    • African Hawk Eagle, H. spilogaster
    • New Guinea Hawk-eagle, H. weiskei
  • Genus Harpagornis (extinct)
    • Haast's Eagle, †Harpagornis moorei - possibly belongs in either Hieraaetus or Aquila

A Steppe Eagle in Lahore Zoo Pakistan.

• • Genus Aquila
    • Bonelli's Eagle, Aquila fasciata - formerly Hieraaetus fasciatus
    • Booted Eagle, A. pennata - formerly Hieraaetus pennatus
    • Little Eagle, A. morphnoides
    • Golden Eagle, A. chrysaetos
    • Eastern Imperial Eagle, A. heliaca
    • Rufous-bellied Eagle, A. kienerii
    • Spanish Imperial Eagle A. adalberti
    • Steppe Eagle, A. nipalensis
    • Tawny Eagle, A. rapax
    • Greater Spotted Eagle, A. clanga - to be moved to Lophaetus or Ictinaetus
    • Lesser Spotted Eagle, A. pomarina - to be moved to Lophaetus or Ictinaetus
    • Indian Spotted Eagle, A. hastata - to be moved to Lophaetus or Ictinaetus
    • Verreaux's Eagle, A. verreauxii
    • Gurney's Eagle, A. gurneyi
    • Wahlberg's Eagle, A. wahlbergi
    • Wedge-tailed Eagle, A. audax
  • Genus Ictinaetus
    • అడవి నల్ల గద్ద (Black Eagle), Ictinaetus malayensis
  • Genus Haliaeetus
    • White-tailed Eagle, Haliaeetus albicilla
    • Bald Eagle, H. leucocephalus
    • Steller's Sea-eagle, H. pelagicus
    • African Fish-eagle, H. vocifer
    • White-bellied Sea-eagle, H. leucogaster
    • Sanford's Fish-eagle, H. sanfordi
    • Madagascar Fish-eagle, H. vociferoides
    • Pallas' Sea-eagle, H. leucoryphus
  • Genus Ichthyophaga
    • Lesser Fish-eagle, Ichthyophaga humilis
    • Grey-headed Fish-eagle, I. ichthyaetus

A dark individual of the Short-toed Eagle.

• Subfamily Circaetinae: snake-eagles
  • Genus Terathopius
    • Bateleur, Terathopius ecaudatus
  • Genus Circaetus
    • పాముల గద్ద (Short-toed Eagle), Circaetus gallicus
    • Black-chested Snake-eagle, C. pectoralis
    • Brown Snake-eagle, C. cinereus
    • Fasciated Snake-eagle, C. fasciolatus
    • Banded Snake-eagle, C. cinerascens
  • Genus Spilornis
    • నల్లపాముల గద్ద (Crested Serpent-eagle), Spilornis cheela
    • Nicobar Serpent-eagle, S. minimus
    • Mountain Serpent-eagle,S. kinabaluensis
    • Sulawesi Serpent-eagle, S. rufipectus
    • Philippine Serpent-eagle, S. holospilus
    • Andaman Serpent-eagle, S. elgini
  • Genus Eutriorchis
    • Madagascar Serpent-eagle, Eutriorchis astur