| Rating | Solver | Clue |
|---|---|---|
| MERGANSER | Diving bird | |
| ERNE | Diving bird | |
| LOON | Diving bird | |
| AUK | Northern diving bird | |
| PUFFIN | Northern diving bird | |
| COOT | A diving bird | |
| DIVER | Any bird of certain genera, as Urinator (formerly Colymbus), or the allied genus Colymbus, or Podiceps, remarkable for their agility in diving. | |
| DABCHICK | ...to the grebes, remarkable for its quickness in diving; -- called also dapchick, dobchick, dipchick, didapper, dobber, devil-diver, hell-diver... | |
| PENGUIN | ...e unable to fly, but use their wings to aid in diving, in which they are very expert. See King penguin, under Jackass. ... | |