A map showing the geographic distribution of avian themed <a href="https://en.wikipedia.org/wiki/Mississippian_copper_plates" class="extiw" title="en:Mississippian copper plates">repoussé copper plates</a>, a <a href="https://en.wikipedia.org/wiki/Mississippian_culture" class="extiw" title="en:Mississippian culture">Mississippian culture</a> elite status goods found as artifacts in the US midwest and southeast.
Herb Roe, www.chromesun.com
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>