F/9.0, 1/320, ISO 250.
How do you know that carrots are good for your eyesight?
Have you ever seen a rabbit wearing glasses?
Interesting Fact: Ruddy Ducks lay big, white, pebbly-textured eggs—the largest of all duck eggs relative to body size. Energetically expensive to produce, the eggs hatch into well-developed ducklings that require only a short period of care. ( http://www.allaboutbirds.org/guide/Ruddy_Duck/lifehistory )