A killer whale was spotted balancing a salmon on its head. It’s not clear what the behavior means, but orcas were observed doing the same thing in the 1980s.

Though researchers have some best guesses, nobody seems to know for sure why exactly a killer whale in Washington state was wearing a dead fish as a hat.

On October 25, an Orca whale from a group of whales called the J pod was spotted with a dead salmon perched on top of its head as it swam through Puget Sound in Washington State, USA. A quick-thinking onlooker snapped a pic and sent it to the Orca Network,

An especially popular killer whale put a dead fish on his head, in a throwback to a fashion last seen in the 1980s.

A resident orca off the coast of Washington state was recently spotted sporting a dead salmon on its head. The phenomenon was first documented in 1987 ...when whales from three separate pods were seen wearing salmon on their heads.