Wren-sized Hole

A house wren peers out of a cavity in a tree where it was making its nest

In terms of its own health, this tree had seen better days. Partly covered in moss and lichen, its cracked bark was dotted with holes from woodpeckers either seeking insects or creating shelter. But there was still life within this tree, and soon there would be lives within it, as this house wren found a perfectly sized entrance hole into an old cavity where it could make its nest and soon, raise its young.