Made from a bark-covered log, 8 inches long and 8 inches in diameter, a hole 5 inches in diameter being bored from end to end, leaving an out wall 1.5 inches thick.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="https://archive.org/details/birdlore12nati">The Internet Archive</a>