Thanks to Maxine Bruce for the following update (as of 7am September 13, 2018):
9,930 sockeye salmon are in the Birkenhead River, and on September 12th, the Lil’wat Fisheries Technicians observed 83 chinook salmon at the Birkenhead River spawning grounds at Hindu Flats.

The Gates Creek spawning channel, Sep 11 2018. Photo by Ellie Mae.
And thanks to Archie Peters for sharing this song, singing the blues by the Birkenhead.