Giving a point an altitude in Viewshed Analysis

Discussion created by jmccabe8 on Jul 12, 2012
Latest reply on Jul 12, 2012 by JSwain-esristaff
I am trying to use viewshed analysis to figure out how much of particular habitat types birds can see from aloft.  Does anyone know how to input an altitude into the viewshed calculation? Essentially, I want to use a centroid point of my songbird migration monitoring site and give that point an altitude to simulate a bird flying over the site.  Thanks! Jenny