8 May 2008, Orca Network reports

Just a quick report that I heard a few transient calls between about 11:50 and midnight PDT on OrcaSound. The first couple were very loud and squawky -- at first I thought it was a great blue heron getting surprised and eaten by something! The subsequent calls were spaced a few minutes apart, rapidly grew fainter, and sounded like transient calls.
Scott Veirs, Beam Reach Marine Science and Sustainability School