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Phoebastria nigripes (Black-footed Albatross)

Enlarge Endangered;A3bd;decreasing

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Image credit: Ron LeValley

Taxonomy & Nomenclature
Scientific Name Phoebastria nigripes
Taxonomic Rank Species
Original Description (Audubon, 1839)Audubon, 1839
Scientific Synonyms (since 1950)
Common Name
Black-footed Albatross
All Common Names English: Black-footed Albatross
French: Albatros à pieds noirs
Taxonomic Parents Kingdom: Animalia
  Phylum: Chordata
    Subphylum: Vertebrata
      Class: Aves
        Order: Ciconiiformes
          Family: Diomedeidae
            Genus: Phoebastria
Taxonomic Children
Taxonomic # 554379
Taxonomic data is courtesy of the Integrated Taxonomic Information System (ITIS)

Physical Description / Field Identification

Phoebastria nigripes is the only mostly dark plumaged albatross in its range. Adults weigh around 3.2 kilograms, with males approximately 10% heavier than females. They have a wingspan of 1.8 to 2.1 meters, and are generally 68 to 74 cm in body length. As adults, both genders have similar coloration, though males are heavier and have a deeper and longer bill. Birds become progressively whiter as the age, particularly in the belly (ventral side), rump (tail coverts), and around the base of the bill. Juveniles have less prominent white plumage around the bill, and therefore appear overall darker than adults.

 

The simplest field identifiers for the black-footed albatross are large and high aspect-ratio wings and soaring flight. Wings are elongated—large for seabirds generally, but small compared with other albatrosses. The dark plumage and feet distinguish this species from the other two North Pacific albatrosses.


Can be Confused With

Two congeners (included in subgenus with the black-footed) are the Laysan (P. immutabilis) and short-tailed (P. albatrus) albatrosses, which both occur in the range of the black-footed albatross. They can be distinguished simply from both the Laysan and short-tailed albatrosses by their general dark color.

 

Black-footed albatross may be confused with the rare immature short-tailed albatross, which have a uniformly dark brown appearance. However, short-tailed albatrosses are larger in size and have pink feet and a large and pinkish “bubble-gum” bill. Black-footed albatross should be differentiated by feet and bill, and by their smaller size.


Distribution

Range:  Cosmopolitan

 

Breeding Distribution: Black-footed albatrosses breed mostly on the northwestern Hawaiian Archipelago and off Japan. They arrive at their nesting sites by the end of October, and then incubate and brood chicks from November until February. Adults continue to provision their chicks from March until June. These seabirds spend the non-breeding season in the North Pacific Ocean (30-60 o Latitude).

 

Marine Distribution:  Found throughout the North Pacific Ocean, from the West Coast of North America to Japan and from the tropics (southernmost range extent approximately 10 o N) to the Gulf of Alaska, and into the SE Bering Sea.

Links to Distribution Map at Sea Around Us Project

Map of OBIS-SEAMAP Data Points

Existing observations across multiple datasets within OBIS-SEAMAP are indicated with red points.
Species distributions (pink background polygon if present) were digitized by Kristin Kaschner as part of the Sea Around Us Project predominantly from Jefferson et al (1993).

Reference
Jefferson, T.A., S. Leatherwood, and M.A. Webber. 1993. FAO species identification guide. Marine mammals of the world. Rome, FAO. 1993.320. p. 587 figs.

Ecology and Behavior

Habit:  Oceanic

 

The black-footed albatross is an open ocean species, coming to land exclusively to breed.

                                                                                             

Black-footed albatrosses live approximately 40 to 50 years, and mate for life. They become reproductively mature at 8 to 10 years old, breeding on average every 1 to 2 years. One chick is produced per breeding season.

                             

Quiet and solitary at sea, though large flocks (hundreds of birds) occasionally form to exploit fish discards from factory trawlers. Noisy in groups at sea, with groaning or squealing noises and bill-snapping.


Feeding and Prey

Broad diet dominated by:  Fish > Squid > Invertebrates

 

Mainly feeds on flying fish (Exocoetidae) egg masses and adults, and secondarily squid (Order Teuthoidea).  Will also consume crustaceans, other invertebrates and carrion.

 

Feeding mode:  Surface seizing, Scavenging

 

Feeds by seizing prey at the surface or shallow surface diving, though black-footed albatrosses do not usually submerge fully.  Known to follow and otherwise aggregate at ships and to consume fisheries discards.  In particular, black-footed albatrosses scavenge at pelagic gillnets and steal bait from longlines.  Thus, these albatrosses often scavenge large squid and fish, as well as mammals and seabirds. 

 

Prey species include:

 

Fish:  Brama japonica, Cololabis saira, Coryphaenoides sp., Electrona risso, Gempylus serpens, Lampanyctus jordani, Prionace glauca, Sagamichthys abei, Unidentified Exocoetidae, Unidentified Moridae, Unidentified Myctophidae

 

PLEASE LINK TO THE FISHBASE SEARCH ENGINE:

      http://www.fishbase.org/search.html

 

Cephalopods:  Abraliopsis felis, Alloposus mollis, Berryteuthis anonychus, Chiroteuthis calyx, Chiroteuthis sp., Galioteuthis phyllura, Galioteuthis sp., Gonatopsis borealis, Gonatus sp., Histioteuthis dofleini, Histioteuthis sp., Leachia dislocata, Mastigoteuthis sp., Octopoteuthis deletron, Octopoteuthis sp., Ocythoe tuberculata, Ommastrephes bartrami, Onychoteuthis borealijaponicus, Unidentified Cephalopoda, Unidentified Octopotheuthidae, Unidentified Onychoteuthidae, Unidentified Teuthoidea, Taonius sp.

 

PLEASE LINK TO THE CEPHBASE SEARCH ENGINE:

         http://www.cephbase.utmb.edu/spdb/spdb.cfm

 

Crustaceans:  Anuropus bathypelagicus, Lepus sp., Unidentified Formicidae,

Unidentified Oplophoridae

Threats and Status

Main threats include:                                       

                                                                                                                   

                        Entanglement in debris / fishing gear

                        Fisheries bycatch

Oil and plastic pollution

 

Conservation status:

 

               o IUCN Species Redlist

 

               o CITES page

 

               o U.S. FWS Threatened and Endangered Species System (TESS)

 

 

References

Hunt, G.L., Jr., H. Kato, and S.M. McKinnell.  (Eds.)  2000.  Predation by marine birds and mammals in the subarctic North Pacific Ocean.  PICES Scientific Report No. 14.  North Pacific Marine Science Organization, Sidney.

 

Tickell, W.L.N.  2000.  Albatrosses. Yale University Press, London.

 

Vermeer, K., K.H. Briggs, and D. Siegel-Causey. (Eds.).  1993.  The status, ecology, and conservation of marine birds of the North Pacific.  Special Publications Canadian Wildlife Service, Ottawa.

 

Whittow G.C.  1993.  The Black-footed albatross (Diomedea nigripes).  Pages 1-16 in A. Poole and F. Gill, eds.  The Birds of North America, No. 65.  The American Ornithologists’ Union, Washington, D.C.


Species Illustrations

Image credit: Chan Robbins

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