On a visit years ago in the Spring to Blackwater NWR there was a lot of activity around the Osprey Nests along the Wildlife Drive. It was in mating season and the Ospreys were busy on the nests. This image was when an other osprey kept trying to get to the nest. On this pass the defending Osprey almost went upside down with claws out defending the nest. Plus there was a lot of screeching of the birds going on. This was the best image of the series because the more it was going up to defend the nest I cut off some of the Osprey in the image. Not sure if there were eggs in the nest or just wanted the nest. Image taken with a 400mm f/4 DO lens with a 1.4x Teleconverter on a Canon 1D mkIII.