The Laysan Albatross - Phoebastria immutabilis - is a large seabird that ranges across the North Pacific. This albatross has blackish-grey upperwing, mantle, back, upper rump,
and tail, and their head, lower rump, and underparts are white. It has a
black smudge around the eye, a pink bill with a dark tip.They are colonial breeders, nesting on scattered small islands and atolls. They feed predominantly on squid but will also eat fish and other invertebrates.
A over 60 Laysan Albatross ranked as the oldest free-flying
bird has thrilled biologists by surviving a tsunami that struck the
Pacific island where it nests, the U.S. Fish & Wildlife Service
says.
The elderly bird named Wisdom and her recently hatched chick were
spotted alive about a week after Sand Island in the Midway Atoll
National Wildlife Refuge was struck by a 5-foot tidal wave unleashed by
the 9.0 magnitude earthquake that hit March 11 off the coast of Japan.
The tsunami killed an estimated 2,000 adult albatrosses and about
110,000 chicks in the refuge, a U.S. possession about a third of the way
between Honolulu and Tokyo in the North Pacific.
Those tallies represent a small fraction of the overall population of
1 million Laysan albatross — Wisdom's species — that nest in the
refuge, but 20 percent of this year's hatchlings.
"It's a dangerous world out there. There's lots going on, so I would
say she's very lucky," said Barry Stieglitz, project leader for the
Hawaiian and Pacific Islands National Wildlife Refuge Complex of the
Fish and Wildlife Service.
Wisdom holds the record as the oldest wild specimen documented during
the 90-year history of the U.S. and Canadian bird-banding research
program.
She was first tagged with an aluminum identification band in 1956
when approximately five years of age. Her latest chick, thought to be
her 35th, was hatched weeks ago, making her a mother again at the ripe
old age of about 60.
"Because she is the oldest, she's able to provide us some information
that no other albatross can at this point in time, and that's exactly
how long-living are these animals," Stieglitz said.
Biologists estimate that Wisdom has logged about 3 million flying
miles in her lifetime, the equivalent of six round trips to the Moon.
Laysan albatross, one of 21 species of the large sea birds, breed on
the Hawaiian islands of Oahu and Kauai and feed off the western coast of
North America, including the Gulf of Alaska. They typically mate for
life and spend their first three to five years in constant flight, never
touching land, and are believed to even sleep while aloft.