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Search Results for "foraging"

J’s near Davidson


48 25.46N 122 45.48W 1519 Moving sporadically toward Davidson Rock. Lots of breeching, and a few spy-hops. The pod was traveling in three groups, all within a mile of each other, alternating between 8-9kt travel and what looked like foraging behavior.  Considerable noise from the sea state, and occasionally I forget to turn off the [...]

Southern resident “ceremony” 10/4/05 (video, photos)


One of the most remarkable behaviors of the southern residents is the “greeting ceremony” in which two groups of orcas line up facing each other and then mingle together. This article describes a similar “ceremony” acoustically and visually (video; photo gallery), and then discusses whether it may have been related to a “greeting,” a “goodbye,” [...]

Brad Hanson on orca diet


Monster Jam, Brad Hanson, 07/04/05 Diet of southern resident killer whales Inferences from prey samples and sensors deployed on killer whales Time-depth-recorder deployments in southern residents Baird and Hansen+? (2005) J Canadian Zoology 40 deployments from 1993-2002 ~10.5 minutes median record duration L87 Haro Strait example record: 2 dives to 100m with velocity spikes near [...]