Gray-headed Swamphen (Porphyrio poliocephalus) species bird that appeared in the famous Jagdishpur Lake of Kapilvastu district looking like an oversized version of a Purple Gallinule with a massive red bill, the Gray-headed Swamphen is an impressive bird and the largest rail in North America. Originally from southern Asia, it became established in southern Florida in the mid-1990s when birds escaped from captivity and began breeding. This bird is called "Kurma" in Nepali.