In the summertime the air is filled with Bank Swallows that have burrowed nests into the walls of an old gravel pit near the river. I've always thought that winter would be so lonely there.
I thought wrong. This year the cavities are the winter homes of Gray-crowned Rosy Finch.
At dusk they all gather to fight over the holes ...
and find refuge and shelter in the condominium that the swallows left behind for the warmer climes.