see www.sciencedaily.com/releases/2017/10/171012151809.htm
“Many birds and other wildlife die following an oil spill, but there are also other potential long-terms effects of oil exposure on animals. In a recent Environmental Toxicology and Chemistry study that examined blood samples from birds present in the Gulf of Mexico in 2010 and 2011 following the Deepwater Horizon oil spill, . . . → Read More: Even light oiling can be harmful to seabirds