Heard the signature call, then saw a bird in bouncing flight. This was at Point Holmes. This bird is extremely rare, with this being the 18th confirmed sighting in BC, and only sighting in the Comox Valley.
This siren is located at the south parking lot of Tinwis Beach in Tofino, BC. I drove over 3 hours just to get there, and it was worth it. I wanted to see a siren test this year, since Puntledge River and John Hart's system both let me down.
They test every first Friday of a month at 11:00AM, and on their website is a countdown to the test.
This is an extremely short sample, but I think it will be able to be found. https://voca.ro/173IjTTq5KUF