If the feathers came from the body/breast...Male turkeys will have a black edge, and females have brown/buff/lighter colored edges.

There is individual variation and perhaps some areas where a given population of tutkeys will not adhere to the "rule", but it is a standard technique used by wildlife biologists.

BUT...it kinda looks like those feathers mighta come off the back of a turkey. Hard to tell 'cause we can't see the whole shaft of the feather.