Science & EnvironmentOfficials search for source of oil that’s coated, killed Northwest coastal birdsBy Courtney Sherwood (OPB)May 22, 2024 1:07 a.m.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up