What do the risk levels really mean?
The risk levels describe three predicted risk classes – Low, Moderate, and Severe, which are based upon the bird mass in ounces per square kilometer. In other words, the risk levels represent the amount of birds (bird mass) in a kilometer squared spatial area. The “Moderate Zone” indicates a risk ratio that is 57-708 times the risk of the “Low Zone”, while the “Severe Zone” indicates a risk ratio that is 2,503-38,647 times the risk of the “Low Zone”! These risk values are derived using a logarythmic scale for the risk surfaces.
