A House martin nest fell from the roof of a building at work. Three baby birds were found dead on the pavement. Above is a top and side X-Ray of one of them. It was only 57mm long. I had trouble scanning the X-Ray. The quality is disappointing and does not reflect the detail on the film. I will re-scan it if I get access to a better scanner.

What are the dense objects which show up bright white? It appears to be inside the bird. Is it something that it was fed?