RockinIdaho, welcome to the board. Unfortunately everyone is telling you the truth. It may be hard to accept but your piece is not an artifact and definitely not an Effigy of any kind. It is a naturally worn stone and nothing else.
Now you gone and done it, said the "E" word, LOL.
http://smg.photobucket.com/user/tomclark/media/OWN/threadeject.jpg.html
It is really a shame that we cant touch and feell the items that are shown. I will re photograph it and show the depth of it if I can. I know it is a tool! at first glance I thought it was a spoon. and I can see a new born baby bird effigy in it!
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