Sounds ominous.
Tuna documented preying on seabirds for first time
Atlantic Bluefin Tuna has been documented preying on seabirds for the very first time. In October 2022, researchers discovered the remains of a Puffin in the stomach of an Atlantic Bluefin Tuna caught some 1.6 km off the coast of Newfoundland, Canada. The identification of the bird species was confirmed by genetic analysis.
birdguides.com