Spread over 38.81 sq km, Pobitro Wildlife Sanctuary is a microcosm of Kaziranga and is often referred to as the national park’s show window. The sanctuary is home to a sizeable population of the endangered one-horned rhinoceros. Ensconced in the grasslands of Assam, the sanctuary is a birdwatcher's paradise as one can find an astounding variety of avifauna. The wetlands host birds like the greater adjutant, lesser adjutant, swamp francolin, white-bellied heron etc. If one is lucky, they can also spot the dolphins that are found in the Brahmaputra river.