A Clue on the Surface
One of the most common questions we hear on the water is: why are there so many birds in one spot?
When you see large numbers of gulls gathering in a tight area, especially around Bigg’s killer whales (transient orcas), it’s often a sign that something has recently happened below the surface.
Bigg’s Killer Whales and Hunting Behaviour
Bigg’s killer whales are marine mammal hunters, feeding on species such as seals, sea lions, and occasionally porpoises.
Hunting typically takes place below the surface and can be difficult to observe directly. However, there are often subtle indicators that give it away.
After a successful hunt, small pieces of prey can rise to the surface. These attract seabirds, including gulls, which take advantage of the opportunity to feed.
Why Seabirds Gather
Seabirds are highly responsive to changes in their environment.
When food becomes available at the surface, birds will quickly gather, sometimes in large numbers, creating a visible signal that draws attention from a distance.
For whale watchers, this behaviour can act as an important visual cue, suggesting that killer whales may be in the area or have recently passed through.
Reading the Signs on the Water
Not every wildlife encounter is obvious.
Often, it’s the smaller details, like bird activity, that help tell the story of what’s happening beneath the surface.
These moments highlight how connected the Salish Sea ecosystem is, with different species responding to the same event in different ways.
Whale Watching in the Salish Sea
Understanding these interactions is part of what makes whale watching in Vancouver and the Salish Sea so engaging.
It’s not just about spotting whales — it’s about learning how to read the water, notice patterns, and recognize the signs of activity happening below.
Spend Time on the Water 🌊
If you’re visiting Vancouver, a whale watching tour on the Salish Sea offers a chance to experience these moments firsthand, and to see how much is happening beyond what’s immediately visible.
👉 Join us on the water with Seabreeze Adventures and see what you can discover.
