Gruiformes

Gruidae
(cranes)

Otidae
(bustards)

Rallidae
(rails, crakes, coots, and gallinules)

Psophidae
(trumpeters)

Aramidae
(limpkin)

Cariamidae
(seriemas)

Turnicidae
(buttonquail)

Eurypygidae
(sunbittern)

Heliornithidae
()

Rhynochetidae
(Kagu)