Garganey (Spatula querquedula)
This triangular postage due stamp (timbre taxe) highlights Mauritania's migratory birdlife and inland aquatic environments by featuring a garganey duck (Spatula querquedula), locally labeled as a summer teal (sarcelle d'été). The precise triangular engraving captures the small dabbling duck alertly standing near a seasonal water body, with its detailed plumage and distinct head markings softly offset by a warm orange-salmon gradient background. This composition conveys a powerful message of ecological balance, wetland preservation, and the international significance of the Sahelian water networks that serve as crucial resting havens for migratory waterfowl. Issued for institutional use by the Islamic Republic of Mauritania, the stamp seamlessly pairs an essential administrative function with a celebration of the country's rich ornithological identity.