FILE - In this Jan. 18, 2014, file photo, endangered orcas from the J pod swim in Puget Sound west of Seattle, as seen from a federal research vessel that has been tracking the whales. A new study from federal researchers provides the most detailed look yet at what the Pacific Northwest's endangered orcas eat. Scientists with the NOAA Fisheries Northwest Fisheries Science Center spent years collecting fecal samples from the whales as well as scales from the fish they devoured. They say their data reaffirm the central importance of Chinook salmon to the whales. (AP Photo/Elaine Thompson, File)
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