| 19?? | 19?? | 19?? | 1973 | 1974 | 1974 |
 |
 |
 |
 |
|
|
| Envelope | |||||
| Sheet | Souvenir Card | ||||
| Stylised Owl | Stylised Owl | Stylised Owl | Snowy Owl | Little Owl | Little Owl |
| 1975 | 1986 | 1988 | 1996 |
 |
|
|
|
| Cover | Cover | Cover | |
| Stylized Owl | Owl | Stylized Owl | Stylized Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Snowy Owl | Spotted Owl | Common Barn Owl | Western Screech Owl | Pacific Screech Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Flammulated Owl | Balsas Screech Owl | Great Horned Owl | Whiskered Screech Owl | Eastern Screech Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Barred Owl | Fulvous Owl | Great Grey Owl | Mottled Owl | Crested Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Black and White Owl | Northern Pygmy Owl | Colima Pygmy Owl | Spectacled Owl | Northern Hawk Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Northern Saw Whet Owl | Striped Owl | Burrowing Owl | Elf Owl | Boreal Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Stygian Owl | Short Eared Owl | Colima Pygmy Owl | Ridgeway's Pygmy Owl | Long Eared Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| African Grass Owl | Soumagnes Grass Owl | African Scops Owl | Sokoke Scops Owl | Congo Bay Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Rufous Fishing Owl | Eurasian Eagle Owl | Desert Eagle Owl | Spotted Eagle Owl | Cape Eagle Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Pemba Scops Owl | Seychelles Scops Owl | Madagascar Scops Owl | Northern White-Faced Scops Owl | Mohéli Scops Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Southern White-Faced Owl | Usambara Eagle Owl | Pel's Fishing Owl | Fraser's Eagle Owl | Verreaux's Eagle Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| African Wood Owl | African Marsh Owl | Long Eared Owl | Pearl Spotted Owlet | Little Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Oriental Scops Owl | Brown Hawk Owl | Snowy Owl | Great Grey Owl | Barking Owl |
| 2009 | 2009 | 2009 | 2009 | 2009 |
 |
 |
 |
 |
 |
| Malay Fish Owl | Barred Eagle Owl | Short Eared Owl | Boreal Owl | Rufous Owl |
| 2009 | 2009 | 2009 |
 |
 |
 |
| Sheet | ||
| Stylised Owl | Stylised Owl | Stylised Owl |
| 2010 | 2010 | 2010 | 2010 | 2010 |
 |
 |
 |
 |
 |
| Little Owl | Gray Owl | Barred Owl | Barn Owl | Horned Owl |
| 2010 | 2010 | 2010 | 2010 | 2010 |
 |
 |
 |
 |
 |
| Screech Owl | Eagle Owl | Short Eared Owl | Snowy Owl | Burrowing Owl |
| 2010 | 2010 | 2010 | 2010 | 2010 | 2010 | 2010 |
 |
 |
 |
 |
 |
 |
 |
| Crested Owl | Stygian Owl | Spectacled Owl | Barn Owl | Fulvous Owl | Great Gray Owl | Burrowing Owl |
| 2011 | 2011 | 2011 | 2011 | 2011 |
 |
 |
 |
 |
 |
| Barn Owl | Barn Owl | Barn Owl | Barn Owl | Barn Owl |
| 2011 | 2011 | 2011 | 2011 | 2011 |
 |
 |
 |
 |
 |
| Boobook Owl | Boobook Owl | Boobook Owl | Boobook Owl | Boobook Owl |
| 2011 | 2011 | 2011 | 2011 | 2011 |
 |
 |
 |
 |
 |
| Great Gray Owl | Great Grey Owl | Great Grey Owl | Great Grey Owl | Great Grey Owl |
| 2011 | 2011 | 2011 | 2011 | 2011 |
 |
 |
 |
 |
 |
| Snowy Owl | Snowy Owl | Snowy Owl | Snowy Owl | Snowy Owl |