Rush hour doesn’t end at sunset. It just moves overhead. While we’re counting sheep, migrating birds are taking the night shift. Fall migration is underway across the country, including for species that spent their summer at Mount Rainier National Park.

Yes, my friends, it is that time of year: the leaves begin to change colors, the temperature cools, and the time-honored tradition of rooting for your favorite chonky bears at Katmai National Park & Preserve begins. Fat Bear Week starts Tuesday: explore.org/fat-bear-week