Around the turn of the 20th centruy, half of a sandstone tablet was found in the field directly east of Monks Mound. Known as the Peet Tablet, both sides of this example were divided into even quadrants by what some interpret as 'painted poles'.
On the 'front' of the tablet are two heads, facing outward. Both heads have beaded fore-locks, and possibly forms of a 'turban' or 'crown' hair style. It is possible these images could represent individuals of rather high status.
The blocky nature of the lips and chin, and the strange 'notched' appearance of the neck probably indicates these faces are also wearing masks, like the figure on the Birdman Tablet. If one concludes these individuals are NOT wearing masks, it is possible the notching indicates that these are decapitated heads.
The two quadrants on the 'reverse' of the Peet Tablet are decorated by the heads of pileated woodpeckers. It is interesting to note that in historic times these birds have been considered 'pests' by power companies because of their strong attraction to telephone poles.
The actual purpose of such tablets remains a mystery to this day.
(Peter Bostrom)
Any relevance between this Birdman legend and the one from Easter Island? The artwork looks a little similar.
hmmm - ancient playing cards?
Could the depictions be of a shaman masked as a hawk?