Black Stork (Ciconia nigra)

This triangular postage due stamp (timbre taxe) celebrates Mauritania's seasonal wetland environments and avian migration networks by featuring the black stork (Ciconia nigra), captioned on the issue as cigogne noire. The precise three-sided engraving captures the elegant wading bird standing alert near a seasonal pool or watercourse, highlighting its slender neck, sharp red bill, and long legs against a soft salmon-orange line gradient. This composition carries a powerful message of ecological connectivity and environmental stewardship, honoring the migratory species that rely on Sahelian wetlands as vital feeding and resting havens. Within the early administrative structure of the Islamic Republic, the stamp integrates official fiscal collection with a representation of the country's diverse natural habitats.