22/08/2026
Yesterday we had a real treat in Juneau, Alaska 🇺🇸🐋
Laura and I headed out whale watching, and although the weather was a little drizzly, the water conditions were beautifully calm.
Having done this trip many times before, I had a fair idea of where we often find the whales. So when our first stop was at the sea lion haul-out, I’ll admit I was feeling a little apprehensive!
Luckily, we soon moved on and headed towards one of the usual humpback hotspots.
First, we spotted the whale-watching boats gathering in the distance…
Then the blows started appearing.
1… 2… 3… 4… 5… 6… 7… 8… we lost count! 🐋🐋🐋
We had come across a group of 15+ humpback whales cooperatively feeding ... we were being treated to one of Alaska’s most spectacular wildlife behaviours:
Bubble-net feeding.
This is an incredible example of teamwork. A group of humpbacks dives beneath a school of fish, usually herring or other schooling prey. Some of the whales blow streams of bubbles while swimming in a circle or spiral beneath the fish.
The rising bubbles form a kind of curtain or net, concentrating the fish into an increasingly tight group.
Other whales may help herd the fish, while the group coordinates its movements and prepares for the final stage.
An important member of the team is the lead whale, which helps coordinate the feeding event and gives the call that signals the group’s final upward charge. Yesterday, that whale was Ruffles, a well-known Juneau humpback. Ruffles gets his name from the distinctive ruffled or scalloped trailing edge of his tail flukes, which helps researchers and whale-watchers recognise him as an individual.
Then comes the spectacular bit…
The humpbacks surge upwards together through the middle of the concentrated fish, mouths wide open, engulfing huge quantities of prey in a single coordinated rush. We could see multiple enormous mouths erupting through the surface at once!
What makes this particularly special is that bubble-net feeding is not something every humpback whale does. It is a learned behaviour, passed socially between whales, and Southeast Alaska is one of the best-known places in the world to witness large groups using this sophisticated cooperative hunting technique.