Limpkin - The Limpkin is placed in its own monotypic family, Aramidae, which is in turn placed with the crane and rail order Gruiformes. It had been suggested that the Limpkin was close to the ibis and spoonbill family Threskiornithidae, based upon shared bird lice. The Sibley-Ahlquist taxonomy of birds, based upon DNA-DNA hybridization, suggested that the Limpkin's closest relatives were the Heliornithidae finfoots, and Sibley and Monroe even placed the species in that family in 1990.