What logistical issues exist when studying $16$th and $17$th century indigenous American women and their societies?

Many of the written sources from the perspectives of the Native Americans have been lost to time.

Most Native American societies did not have a written language. Without written documents from the perspective of those Native Americans who lived at that time, historians are forced to rely on written documents produced by the Europeans who encountered them.

All the written accounts we have from this era were written by Native American men.

There is an abundance of written evidence, which makes studying this era a bit overwhelming.