Jordan Lake: The field identification marks on a fledgling Osprey are beautiful and unmistakable. The bright almost red-orange eye is very intense. As an adult the eye would be a clear golden yellow. At the end of each flight and back feather there is a white marking that looks like the head of a “rivet” to me. As the osprey ages these white markings will wear off and be un-noticeable in a 1.5 year-old-osprey.