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WatchList Species Account for Kittlitz’s Murrelet
(Brachyramphus breviostris)
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| Photo: Glen Tepke |
One of the rarest of all seabirds, the
North American population of Kittlitz’s Murrelet occurs
in the waters of Alaska, migrating between offshore in winter
and inshore in summer; lower numbers are scattered along the
coast of eastern Russia. The entire world’s population
is estimated at 9,000 to 25,000 birds. Since 1984 the Kittlitz’s
Murrelets haved declined by 84% in Prince William Sound with
similar declines elsewhere, trends which, if they continue,
will cause the species to disappear within a few decades.
The birds nest on the ground in mountainous
areas near glaciers, and forage during breeding season in
near-shore marine waters. They winter at sea, but very little
is known about their activities at that time. They are highly
vulnerable to oil spills, and the impacts of global warming
on glaciers may reduce the amount of their favored breeding
habitat through increased sedimentation, which may reduced
the bird’s ability to see their prey, and a lowered
salinity, which result in fewer forage fish on which the murrelet
feeds.
Disturbance by increased vessel traffic
from tour and cruise ships may affect the bird, since their
preferred breeding areas near tidewater glaciers are also
the destination of these tour ships. The species is under
review for listing under the Endangered Species Act.
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