Grey Heron (Ardea cinerea)

This triangular postage due stamp (timbre taxe) highlights Mauritania's seasonal wetland environments by featuring the grey heron (Ardea cinerea), explicitly labeled on the issue as héron cendré. The distinctive three-sided engraving captures the tall wading bird standing amidst shallow waters and marsh reeds, showcasing its slender profile and sharp beak against a soft green gradient background. This imagery carries a message of environmental preservation and biological diversity, honoring the riverine habitats that support native aquatic avifauna. Within the early postal network of the Islamic Republic, the stamp integrates standard fiscal collections with representations of the nation's precious water resources and ecosystem variety.