Fewer than a dozen oiled birds and animals have been spotted during the flyovers, but more will be found as observers start walking the beaches, said Barbara Callahan of the International Bird Rescue Research Center.
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"You would not see those birds" from the air, she said. "They're cold, they're not buoyant, they can't fly. So they go hide."
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After a spill in the Pribilof Islands several years ago, oiled birds walked 200 yards to hide in the grass, Callahan said. On Unalaska Island, they'll likely be in caves and cracks in the rocks.
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The first wildlife observers were to start walking beaches around Skan Bay on Monday, if they could land safely. A second ship was headed to the area to become a work station for the wildlife crews.
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A local salvage expert had the only boats at the spill site until Monday. They placed oil-stopping boom material across the mouths of several salmon streams but could not skim free-floating oil from the water, according to Gary Folley, the state's on-scene coordinator from the Alaska Department of Environmental Conservation.
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None of the oiled beaches has been cleaned, and the prospects for additional work are poor. A storm was expected to hit the spill area Monday night, bringing 40-knot winds and 18-foot seas.
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