| 1967 | 1967 | 1968 | 1968 | 1968 | 1968 |
 |
 |
 |
 |
 |
 |
| Mayan Calendar | Mayan Calendar | Mayan Calendar | Mayan Calendar | ||
| SG 3442 | SG 3443 | SG | SG | SG | SG |
| Scott 1899 | Scott 1900 | Scott 2030 | Scott 2031 | Scott 2032 | Scott 2033 |
| Barn Owl | Eagle Owl | Stylized Owl | Stylised Owl | Stylized Owl | Stylized Owl |
| 1968 | 1968 | 1968 | 1968 | 1985 | 1991 |
 |
 |
 |
 |
 |
 |
| Mayan Calendar | Mayan Calendar | Mayan Calendar | Mayan Calendar | Close Up | |
| SG | SG | SG | SG | SG 4923 | SG 5384 |
| Scott 2034 | Scott 2035 | Scott 2036 | Scott 2037 | Scott 3257 | Scott 3687 |
| Stylized Owl | Stylized Owl | Stylized Owl | Stylized Owl | Snowy Owl | Stylised Owl |
| 1968 | 1968 |
 |
 |
| Booklet version - see shading top leg left runner | |
| Mayan Calendar | Mayan Calendar |
| SG | SG |
| Scott 2038 | Scott 2038 |
| Stylized Owl | Stylized Owl |
| 1991 | 1992 |
 |
 |
| SG MS5388bg | SG 5479 |
| Scott 3692ag | Scott 3783 |
| MS | |
| Pel's Fishing Owl | Spotted Owl |
| 1997 |
 |
| SG 5880/1 |
| Scott 4157/8 |
| Two Stylised Owl in selvedge |
| 1997 |
 |
| SG 5880/1 |
| Scott 4157/8 |
| One Stylised Owl in selvedge |
| 1998 | 1999 | 1999 | 2000 |
 |
 |
 |
 |
| Close Up | Close Up | Close Up | |
| SG 5951 | SG 6012 | SG 6013 | SG 6155 |
| Scott 4226 | Scott 4266 | Scott 4267 | Scott 4407 |
| MS | |||
| Barn Owl | Stylised Owl | Stylised Owl | Stylised Owl |
| 2005 | 2005 |
 |
 |
| SG 6349 | SG 6350 |
| Scott 4579 | Scott 4580 |
| Common Scops Owl | Ural Owl |
| 2005 | 2005 |
 |
 |
| SG 6351 | SG 6352 |
| Scott 4581 | Scott 4582 |
| Eurasian Pygmy Owl | Short Eared Owl |
| 2005 | 2005 |
 |
 |
| SG 6353 | SG 6354 |
| Scott 4583 | Scott 4584 |
| Long Eared Owl | Boreal Owl |
| 2007 | 2007 | 2007 | 2007 | 2007 |
 |
 |
 |
 |
 |
| SG 6785 | SG 6786 | SG 6787 | SG 6788 | SG 6789 |
| Scott 4935 | Scott 4936 | Scott 4937 | Scott 4938 | Scott 4939 |
| Sheet A | ||||
| Sheet B | ||||
| Publicity Card Front | ||||
| Publicity Card Back | ||||
| Little Owl | Little Owl | Little Owl | Little Owl | Little Owl |
| 2008 | 2008 | 2011 | 2011 |
 |
 |
 |
 |
| SG 6890 | SG 6891 | SG 7147 | SG 7147 |
| Scott 5043 | Scott 5044 | Scott 5279 | Scott |
| Sheet | Sheet | Sheet | Sheet |
| Stylised Owl | Stylised Owl | Stylised Owl | Stylised Owl |
| 2013 | 2013 |
 |
 |
| SG 7342 | SG 7343 |
| Scott | Scott |
| Little Owl | Long Eared Owl |
| 2013 | 2013 |
 |
 |
| SG 7344 | SG 7345 |
| Scott | Scott |
| Ural Owl | Great Grey Owl |
| 2013 |
 |
| SG 7389 |
| Scott |
| Sheet UV Sheet |
| Stylised Owl |
