[Tweeters] Birds Go Missing - Bellingham

[Pauline Sterin via Tweeters]

I, too, have observed a sudden decrease in the number of birds this time of year. On my 2020 calendar for September 9th I noted, "Birds go missing."  Some fellow birders I've mentioned this to have also noted this, but we have no explanation.

Pauline Sterin
Bellingham