GREBE
| Date | Clue |
|---|---|
| 2018-11-13 | Diving bird |
| 2016-08-27 | Helldiver, e.g. |
| 2016-07-08 | Duck lookalike |
| 2014-03-22 | Diving bird |
| 2010-07-20 | Loonlike bird |
| 2007-08-11 | Relative of a loon |
| 2005-08-21 | Loonlike bird |
| 2000-12-06 | Cousin of a loon |
| 2000-11-05 | Loon's cousin |
| 1998-01-04 | Diving bird |
| 1997-10-26 | Diving bird |
| 1997-10-05 | Cousin of a loon |
| 1997-09-08 | Diving bird |
| 1996-10-19 | Helldiver |
| 1996-08-31 | Cousin of the loon |
| 1996-05-28 | Diving bird |
| 1996-01-23 | Diving bird |
| 1995-12-17 | Diving bird |
| 1994-04-10 | Pied-billed bird |