In the past two months, 300 dead puffins have washed up on St. Paul Island, alarming residents who had only seen six carcasses over the last decade.
The die-off appears to be slowing down now, but scientists say it could be the sign of a much larger ecosystem problem.
Lauren Divine didn't panic when St. Paul residents found a few dead puffins on the beach in mid-October.
"The first day was a tufted puffin. The next day was a horned puffin. I didn't think too much about it," said Divine, co-director of St. Paul's Ecosystem Conservation Office (ECO).