Albatross

Albatross
File:Albatross124.JPG
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Aves Order: Procellariiformes Family: Diomedeidae Genera: Diomedea Thallasarche Phoebastria Phoebetria
Species
Phoebastria albatrus Phoebastria nigripes Phoebastria irrorata Phoebastria immutabilis Diomedea epomophora Diomedea exulans Diomedea amsterdamensis Thallasarche chlororhynchos Thallasarche melanophris Thallasarche chrysostoma Thallasarche bulleri Thallasarche cauta Phoebetria fusca Phoebetria palpebrata

The albatrosses (from Portuguese Alcatraz, a pelican) are seabirds in the family Diomedeidae, which is closely allied to the petrels.

This is a group of large to very large birds with very long narrow wings. The beak is large, strong and sharp-edged, the upper mandible terminating in a large hook. The feet have no hind toe, and the three anterior toes are completely webbed.

Albatrosses travel huge distances using a technique used by many long-winged seabirds called dynamic soaring. This enables them to minimise the effort needed by gliding across wave fronts.

Their principal food is cephalopods.

Current thinking divides the albatrosses into four genera:

• North Pacific albatrosses (Phoebastria)
  • Laysan Albatross P. immutabilis
  • Black-footed Albatross P. nigripes
  • Galapagos Albatross P. irrorata
  • Short-tailed Albatross P. albatrus

• Great albatrosses (Diomedea)
  • Royal Albatross D. epomophora
  • Wandering Albatross D. exulans
  • Amsterdam Albatross D. amsterdamensis

• Mollymawks (Thalassarche)
  • Yellow-nosed Albatross T. chlororhynchos
  • Buller's Albatross T. bulleri
  • Shy Albatross T. cauta
  • Grey-headed Albatross T. chrysostoma
  • Black-browed Albatross T. melanophris

• Sooty albatrosses (Phoebetria)
  • Dark-mantled Sooty Albatross P. fusca
  • Light-mantled Sooty Albatross P. palpebrata.

The taxonomy of the albatross group is very fluid at the present time. The American Ornithological Union places seabirds, birds of prey and many others in a greatly enlarged order Ciconiiformes, whereas in Europe, South Africa, Australia and New Zealand, the more traditional Procellariiformes is retained.

Both the British Ornithological Union and the South African authorities split the albatrosses into four genera as indicated in the table. (Ibis (2002) 144 p707-710.)

The name Diomedea, assigned to the albatrosses by Linnaeus references the mythical metamorphosis of the companions of the Greek warrior Diomedes into birds.

black-browed albatross hunting for krill (photo Uwe Kils)

black-browed albatross hunting for krill (photo Uwe Kils)

References

• ITIS (Follows the AOU classification.)

• Roberts' VII Bird Species List (South Africa.)

• HANZAB complete species list (Handbook of Australian, New Zealand and Antarctic Birds.)