There's a Blue Whale Hanging Out In San Francisco Bay

"What's very unusual is it's a month early," Bill Keener, a field researcher with the Marine Mammal Center told SFGATE. "It's normally late April they come to feed. This guy shows up on March 9."

"The phenomenon only started in 2016. We never saw them before, except lost ones," he said. "But five years ago they figured out how to navigate the bay and get to the food."

The massive increase in whales in the bay in recent years maybe down to a change in ocean patterns, or there simply being more mouths to feed after whale hunting was banned.