| 1990 | 1990 |
 |
 |
| Boreal Owl | Common Scops Owl |
| 1990 | 1990 |
 |
 |
| Barn Owl | Long Eared Owl |
| 1990 | 1990 |
 |
 |
| Tawny Owl | Short Eared Owl |
| 1992 | 1992 |
 |
 |
| Boreal Owl | Boreal Owl |
| 1992 | 1992 |
 |
 |
| Long Eared Owl | Long Eared Owl |
| 1992 | 1992 |
 |
 |
| Barn Owl | Barn Owl |
| 1992 | 1992 |
 |
 |
| Tawny Owl | Tawny Owl |
| 1992 | 1992 |
 |
 |
| Common Scops Owl | Common Scops Owl |
| 1992 | 1992 |
 |
 |
| Short Eared Owl | Short Eared Owl |
| 1992 | 1997 |
 |
 |
| Barn Owl | Stylised Owl |
| 1998 | 2001 |
 |
 |
| Close Up | |
| Stylised Owl | Stylised Owl |
| 2006 | 2009 |
 |
 |
| Stylised Owl | Stylised Owl |
| 2009 | 2010 |
 |
 |
| Stylised Owl | Stylised Owl |