| 1998 | 1999 | 1999 |
 |
 |
 |
| SG ? | SG ? | SG ? |
| Scott 1398 | Scott 1416c | Scott ? |
| MS | MS | |
| Imperf | ||
| Barn Owl | Madagascar Long Eared Owl | Unidentified Owl |
| 2001 |
 |
| SG ? |
| Scott 1556 |
| Imperf |
| Great Horned Owl, Spotted Owlet, Cape Eagle Owl, Spotted Eagle Owl, Long Eared Owl & Tropical Screech Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416a | Scott 1416b |
| Imperf | Imperf |
| Unidentified Owl | Unidentified Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416c | Scott 1416d |
| Imperf | Imperf |
| Madagascar Long Eared Owl & Barn Owl | Barn Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416e | Scott 1416f |
| Imperf | Imperf |
| Barn Owl | Unidentified Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416Jk | Scott 1416Jl |
| Imperf | Imperf |
| Unidentified Owl | Unidentified Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416Jm | Scott 1416Jn |
| Imperf | Imperf |
| Unidentified Owl | Unidentified Owl |
| 2004 | 2004 |
 |
 |
| SG ? | SG ? |
| Scott 1416Jo | Scott 1416Jp |
| Imperf | Imperf |
| Unidentified Owl | Unidentified Owl |
| 2014 - Possibly Bogus |
 |
| SG |
| Scott |
| Sheet |
| Crested Owl |
| 2014 - Possibly Bogus |
 |
| SG |
| Scott |
| Eagle Owl |