AP, Mar 24, 2016 (emphasis added): Alaska’s massive seabird die-off spreads… Federal biologists last week walked… Katmai National Park and counted 2,000 dead seabirds… “[That's only] a hint of what probably was there… every beach we looked at had dead birds” [US Fish & Wildlife Service's Robb Kaler said]… “if we had rakes we would have found a lot more,” [said retired USGS biologist Tony DeGange]… [Officials surveyed the area] in 2009 and 2012 [and] counted zero and 14 common murres… Last week [they] counted hundreds.
AP, Mar 24, 2016: Seabird die-off takes twist… thousands of common murres were found dead [in an Alaskan] lake… experts were puzzled. “We’ve talked about unprecedented things about this die off. That’s another one,” said [USGS biologist] John Piatt… “6,000, 8,000 birds in the lake is pretty mind-blowing, really… I’ve never heard of any such a thing anywhere in the world.”… [F]ederal agencies are trying to determine if the murre deaths are connected to lack of food… or something else…”This is the thing about this die-off,” Piatt said. “We don’t even know what we don’t know.”
KTVF, Mar 18, 2016: Thousands of Alaska birds dying mysteriously — The massive die-off…continues to surprise federal scientists. The latest twist was the discovery of thousands of carcasses of common murres along a freshwater Alaska lake… [USGS's John Piatt said] to have more than 6,000 in a lake mind-blowing.
KTUU, Mar 19, 2016: According to the Cornell Lab of Ornithology, the Common Murre [spends] winter at sea, making inland discoveries… that much more alarming.