In the fall and spring, Monroe, WA, is the spot to observe some of nature's delightful weirdness. Small birds called Vaux's Swifts (pronounced "voxes") use a local chimney as a roosting spot during their migration.
Not just some birds or a few birds but A LOT of birds. Last night's count was over 10,000, all descending at dusk within a few minutes into a single large chimney.
The birds put on a group aerial display that is beautiful and strange and sort of even slightly magical even though it's just a completely explainable natural phenomenon. Taking a trip to Monroe to see the swifts is something I look forward to every year.
You can see it any day at dusk during migration, but once during the fall season, Monroe makes a fun community event of it, with informative displays, a bird chat, spaghetti feed, crafts for kids, more. If you are free this Saturday, consider checking it out!
And if you can't make it this weekend, it's still worth a visit on a non-event day. See the Monroe Swifts site for the most recent count and to learn if the swifts are still flying.