| 1977 | 1987 | 1987 | 1993 | 1997 |
 |
 |
 |
 |
 |
| SG 873 | SG 1307 | SG D1329 | SG 1542 | SG 1738 |
| Scott C71 | Scott C104 | Scott J62 | Scott 731 | Scott 1108 |
| Black Banded Owl | Black Banded Owl | Black Banded Owl | Barn Owl | Spectacled Owl |
| 2001 | 2004 | 2005 | |||
 |
 |
|
|||
| Close Up | |||||
| SG 1905 | SG 2056 | SG ? | |||
| Scott 1254 | Scott 1314 | Scott 1329b, i &j | |||
| Sheet | Sheet | ||||
| Great Horned Owl | Little Owl | Striped Owl, Crested Owl & Tropical Screech Owl |
| 2006 | ||
|
||
| SG 2163 & 2166 | ||
| Scott 1338h & k | ||
| SG 2156/67 | ||
| Tropical Screech Owl & Mottled Owl |
