@Mina @dcjohnson @luisfcorreia The point is that charts with absolute numbers are useless if they're comparing apples to oranges. Of course the best bird killer are Santa's Elfs at a score of zero kills (due to zero availability). Only equivalent scales can be compared, eg estimate kills per square meter. The ration may be worse, or may be better, but not known... it's an useless number prone to abuse from either side of the debate.