| 1962 | 1969 | 1972 | 1990 |
 |
 |
 |
 |
| Close Up | |||
| SG 736 | SG 965 | SG 1026 | SG 1996 |
| Scott 517 | Scott 744 | Scott 820 | Scott 1733 |
| Barn Owls | Unidentified Owl | Unidentified Owl | Stylised Owl |
| 1993 | 1993 |
 |
 |
| SG 2109 | SG 2111 |
| Scott 1845 | Scott 1847 |
| Imperf | Imperf |
| Eagle Owl | Tengmalm's Owl |
