In the past 2 days I've seen mention of throwing a tree yelp real early. One person gave it as a tip to use if you know there are other hunters in the same area throw a tree yelp before anyone else calls and the I don't exactly remember the reasoning from the other person but it also was usedjust before or at first light.Would someone please explain the differance? Thanks

Oh boy, had to come back cause now someones talking about using a gobbler yelp and cluckinstead of the hen talk. Man, this turkey stuff gets deeper everyday. Again, thanks