Avian migration exhibits a planetary ebb and flow like that of an ocean tide—a pull across the latitudes exerted on whole populations of birds. Throngs of shorebirds and waterbirds come surging into our region from the Arctic north every autumn—they ride the frozen edge of winter south to California’s Central Valley.
https://baynature.org/article/time-tundra-swans/
The Snow Goose Festival, which indeed celebrates snow-geesery but a host of other birddom, too, has many fans, an understandable thing as it has happily flapped for some 19 years now. Don't let your dream workshop fill up, and don't miss out on the field trip you want to take. Most of all, consider changing up your own daily route, or path, for a few days in late January 2018, all to get to know those fly-tastic superstars of the Pacific Flyway, one of the great feather-famous roads of the sky.
https://www.nbclosangeles.com/news/local/Majestic-Bird-Awe-Snow-Goose-Festival-in-Chico-467417743.html
Cedar waxwings and toyon berries: It’s one of those iconic California food-web pairings, like black bears and manzanita berries or southern sea otters and sea urchins. In fall and winter, flocks of the black-masked birds swoop in on toyon shrubs laden with clusters of bright red berries, making their tea-kettle-like whistles.
https://baynature.org/article/toyon-cedar-waxwings-classic-pairing/