Basalt As Shelter
As the winter sun sinks over the Coulee Lakes, hundreds of Gray-crowned Rosy-Finches suddenly appear, an undulating cloud that swarms into the upper levels of the basalt cliffs. The finches nest high in the mountains in summer, and roam the countryside in large flocks in winter. Gray-crowned Rosy-Finches roost for the night in a colony of abandoned swallow nests on basalt cliffs. Watch a video of a Gray-crowned Rosy-Finch foraging.