| country | year | Yvert | mint | used | |||||
|---|---|---|---|---|---|---|---|---|---|
| Aegolius acadicus | |||||||||
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Northern saw-whet owl: The global population has been estimated at 2,000,000 mature individuals (2020). ("The IUCN red list of threatened species", Cambridge, 2024) | America | 1988 | 1813b |
0.50€
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northern saw-whet owl | America | 1988 | 1813c |
1.30€
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