|
Deepseawaters
Home Deep
Sea Birds Black-footed
Albatross
Black-footed Albatross
Common Name: Black-footed
Albatross
Scientific Name: Phoebastria nigripes

Description
The Laysan Albatross and
Black-footed Albatross are two of the 3 species
of albatross that occur in Alaskan waters. Albatrosses
are by far the largest seabirds found in
Alaska, but are small compared to many other albatrosses.
Laysan, Black-footed, and Short-tailed Albatross have a wingspan
of almost two meters, which is half that of the largest albatrosses.
Albatrosses do not nest in Alaska but they migrate here each
year after having bred in such far away places as the Northwestern
Hawaiian Islands and Torishima Island in Japan.

On these remote uninhabited islands, albatrosses
nest in huge, dense colonies. Nearly all of the 400,000 breeding
pairs of Laysan Albatross and 50,000 pairs of Black-footed
Albatross nest in the Northwestern Hawaiian Islands.
The Latin family name for albatrosses is Diomedeidae, which
comes from the name of the Greek hero of the Trojan War, Diomedes.
The Greek gods exiled Diomedes to an isolated island and turned
all of his companions into large, white birds resembling swans
Life History
Reproduction Comments: Single
egg is laid mid-November to early December on Midway Island.
Incubation, in long turns by both sexes, lasts 63-68 days.
Young are tended by both sexes. Nestling stage lasts about
140 days. May not breed until 5+ years old. Life-long pair
bond. Does not renest if egg is lost.
Habitat
Marine Habitat(s): Near
shore, Pelagic
Terrestrial Habitat(s): Sand/dune
Habitat Comments: Pelagic. Frequently follows ships.
Nests in sand on oceanic islands. Usually nests in same spot
in successive years.
Location or Region Found
Albatrosses are truly at home soaring over
the open ocean. Since the first humans encountered albatrosses
at sea, they have marveled at their mastery of the ocean despite
the harshest North Pacific storms.
Move

They travel great distances in search of
food by riding currents of air that flow just above the surface
of the water. With their long, narrow, pointed wings stiffly
outstretched they soar effortlessly up and over the peaks
of the highest waves only to plunge gracefully into the next
valley, all with only the twist of the tail or tilt of the
head, and only the occasional wingbeat. When albatross
return to their breeding colonies, they are not quite as graceful.
They approach the island at high speed, pulling up only at
the last moment, often times skidding to a stop on their chests.
These "crash" landings combined with their strange and elaborate
courtship dances, and their lack of fear of people has resulted
in them being called "gooney birds" and aho-dori or "fool
birds" in Japanese. Anyone who has closely observed these
majestic birds on land or watched them at sea, knows how unfair
these names are.
Breeding
Today, most of the breeding sites of North
Pacific albatrosses have been preserved and
it is illegal to intentially kill albatross. However many
Laysan and Black-footed albatross are killed
every year as a result of human activities. Long-line fishing
is one of the causes, but this problem may be small compared
to others. When albatross see small pieces of plastic floating
on the surface of the water they will often mistake them for
food and eat them. This plastic builds up inside the bird
and can eventually prevent the bird from feeding properly.
Breeding colonies are often covered in plastic debris and
piles of plastic mark where birds have died and their bodies
have decomposed. There is also concern for the levels of some
toxic pollutants in the bodies of albatrosses.
Email
To Friend
|