Today Captain Mike along with Sarah and myself took off from the dock in Friday Harbor with a warm sun in the sky, a boat full of excited passengers, and reports of resident killer whales in Haro Strait, on the west side of San Juan Island. I had a feeling it was going to be an awesome trip because before we left there was a “Sundog” in the sky, a full rainbow around the sun. We headed south toward Cattle Point where we saw lots of seals with their heads bobbing up and down in the water like a game of whak-a-mole. At low tide, we will typically see tens of seals hauled out on exposed rocks to sun themselves and enjoy a respite from the chilly water of the Salish Sea. We rounded Cattle Point and began to head north and as the Lime Kiln lighthouse came into view so did black dorsal fins breaking the surface of the water. As we got a bit closer, we saw first one then another huge dorsal fin break the surface, the sign of two large males. Killer whales, like many animals, exhibit “sexual dimorphism”, meaning that males and females have different physical characteristics. This can sometimes be a result of sexual selection, for example females choosing the crab with the largest fin or male elephant seals becoming larger than females to battle one another for mating rights. In Orcas, mature females retain a short and curved fin after reaching maturity while males dorsal fins sprout skyward to reach an impressive height of six feet when fully grown! The role of the dimorphism in Killer whales is not very well understood.
The whales we saw were a smattering of groups from J pod and K pod including the K12 matriline, from which we saw multiple breaches, spyhops and tail lobs from Sekiu and Tika and the J22 matriline or “cookie clan” including Cookie and her offspring Prep and Doublestuff.
We stayed with them for quite a while as they all were very active and happy while fishing and swimming along the west side. They graced us with all sorts of happy whale activity until we had to head back to friday harbor.
On the way back we saw bald eagles a’plenty as well as some harbor seals and harbor porpoise. Another Whale of a day in the Salish Sea!
Naturalist Mike J
M/V Sea Lion
San Juan Safaris