Deepwater Horizon oil shows up in sparrows

Scientists have identified the first evidence of Deepwater Horizon oil in a land animal – the Seaside Sparrow. The scientists analyzed the diet and feathers of sparrows collected more than a year after the oil spill. The birds that were captured in habitats that were exposed to the oil had a different chemical signature in their tissues than the birds that were found in areas of the marsh that were not exposed to the oil.