On a beautiful sunny day in late November, I patrolled the western shore of Lake Mille Lacs, looking beyond the ice rimming the shoreline to scan for lingering waterfowl. Wind had blown some of the ice against the shore, creating a fractured palette of gray. Beyond that, the lake was a peignoir blue.
Six birds cut across that blue in an undulating flight. They were the size of waxings but white. They could only be snow buntings.
I followed them down the shore, hoping they would sweep to a stop at some grassy place ahead of me. (It's not easy to get a close look at snow buntings.) But the birds flew on, seeming to disappear in the white of the ice.
It was unusual to see snow buntings flying over a lake. These are tundra birds. In Minnesota, you'll see them in fallow or weedy fields, along road edges, picking at seeds and grit. They arrive in late fall, ranging widely across the state until they migrate north in March.
When they're foraging in the weeds, it's almost impossible to see buntings. But with luck, one of them will pull the departure trigger, and all of the birds will rise up as a single creature and flow away. And that's how you usually see them -- a white string of birds wheeling and whirling in the air.
Snow buntings look white when you see them in the air. But if you can get a good look at them on a roadside, you'll see that the white of their non-breeding plumage is marked with rust and brown on the back, crown, flanks and breast. There is a vivid cheek patch and the black wing and tailfeathers are embroidered with white on the edges.
The females look like that year-round. The males change plumage. When courting in spring, the males lose their mottled colors and become white birds with black wings. In that breeding plumage, they're often regarded as the epitome of bird beauty.
I had another lakeside encounter with buntings. Several Novembers ago, I was wandering down the North Shore, checking any patch of grass or brush for reluctant migrants. Instead, I found a surprise: a small flock of buntings not at the beginning of their migration, but at the likely end of their trip south from Canada.