The Bitterroot Valley is in a major flight path for migrating Canada Geese, along with snow geese and many other varieties of high fliers.

Some of those geese are year-round residents of the valley. But many more have been passing through in the last month, heading for warmer temperatures to the south.

Of course, that's a long trip. One of the reasons they pass through the valley is the existence of the Lee Metcalf National Wildlife Refuge, offering large ponds and fields where the birds can land and rest up for another leg of their migration.

Honking in the morning and at dusk, the sounds of the geese are just another indication of the season passing in Montana.

Geese flying over Lee Metcalf National Wildlife Refuge. (Mike Daniels, Townsquare Media)