The Global Security article lists the RCS of a bird, and a man. Apparently, a hummingbird has the same RCS as a Condor. The RCS rating, from many aspects, is a highly cherished military secret, knowledge of which can get you shot. Sales agents of weapons manufacturers may release interesting "data" to prospective customers and the media to entice purchasers of the merits of their products, but the proof is in the pudding, and Bill Cosby worked for Jello. I recently learned that Mata Hari was declared unfairly tried of spying for the Germans in 1917, and that she spied for the French, who nevertheless needed a scapegoat for French incompetence and shot her dead. Please don't fuck around with military secrets, and if anyone asks you, tell them you don't know nuthin'. It's actually true.