King rail
This rail forages in shallow water near cover and eats mainly aquatic insects and crustaceans. It forages by probing the mud while moving around in shallow water.
Grey-necked wood rail
Placed in the family Rallidae—the rails—this species was originally described as "Fulica Cajanea" by Philipp Ludwig Statius Müller, in his 1776 "Vollständiges Natursystem". Müller based his description on the illustration “Poule d’Eau de Cayenne” (Cayenne’s water hen) by French naturalist and artist Edme-Louis Daubenton in his "Planches Enlumineés d’Histoire Naturelle". It was eventually moved to the new genus "Aramides", the wood rails, by Jacques Pucheran in 1845, and the specific epithet was changed to "cajaneus".