Black Skimmer (Rynchops niger subsp. intercedens) and Jabiru (Jabiru mycteria). The Skimmer was asking politely if the Jabiru would leave its private sandbar. Along a sandbar of Ro Piquiri, south of Porto Jofre, Pantanal, Mato Grosso, Brazil. Elevation ca. 128 m (420 ft).