CBS Local | Mystery Goo On California SeaBirds Is Synthetic Oil Capital Public Radio News The mysterious gray goo that killed 170 seabirds in the San Francisco Bay Area has been identified as a non-petroleum oil substance. California Department of Fish and Wildlife officials said Thursday that non-petroleum oils include "synthetic oils such ... 'Mystery goo' on shorebirds is nonpetroleum fat or oil, scientists say Mystery Goo Killing Hundreds Of Bay Area Birds Identified As Non-Petroleum Oil ... |