I did not witness this personally, but my wife called me yesterday to tell me that she had chased off a bald eagle. Our 2 surviving ducks have made friends with a pair of Canada geese, and they hang out together for a good part of the day. (It also helps that they get a little bit of corn) Early in the afternoon, she heard a tremendous racket made by the geese, and looked out and saw a bald eagle swooping above them. As it happened, they were under some trees on the edge of the pond, which probably saved them. She ran outside and the eagle flew off. The geese, being the smarter ones recognized the threat, but apparently our ducks were too dull to notice anything was amiss. This was certainly not something on my predator list. I thought that hawks would be an issue for the ducklings, but I did not think our full grown ducks would be in danger during the day from a bald eagle! Anyone had this type of predation?