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Even light oil exposure may affect bird's flying ability

Even in small amounts, crude oil on a bird's feathers hampers its flying ability, according to a study on the effects of oil spills on migratory birds. "We expected that the birds would have difficulties with flight and be slower in their arrival, but we did not expect such an obvious flight path difference," said Cristina Perez, lead author of the study published in Environmental Pollution.

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