This has been a bumper year for nesting House Wren in the Celery Farm. Two nest boxes have yielded young, and the two nest boxes used earlier this year by Tree Swallows now appear to be occupied by House Wrens (above).

House Wrens successfully nested in my backyard as well (below), and I photographed the interior of the box after the babies fledged (the entry hole is on the left, and the birds nest in a small indentation in the back of the box.