Pelecanae

The Pelecanae is an unranked group containing many different species of birds including the herons, bustards, cuckoos, and turacos. It includes many aquatic and semi-aquatic birds.

Taxonomy
Together with the Charadriae and Passerae, they make up the Coronaves.

Opisthocomiformes

 * Opisthocomidae: hoatzin

Otidiformes

 * Otididae: bustards

Cuculiformes

 * Cuculidae: cuckoos

Gruiformes

 * Psophiidae: trumpeters
 * Aramidae: limpkin
 * Gruidae: cranes
 * Heliornithidae: finfoots
 * Sarothruridae: flufftails
 * Rallidae: rails, coots and allies

Musophagiformes

 * Musophagidae: turacos

Gaviiformes

 * Gaviidae: loons/divers

Sphenisciformes

 * Spheniscidae: penguins

Procellariiformes

 * Oceanitidae: southern storm-petrels
 * Diomedeidae: albatrosses
 * Hydrobatidae: northern storm-petrels
 * Pelecanoididae: diving-petrels
 * Procellariidae: petrels, shearwaters and allies

Ciconiiformes

 * Ciconiidae: storks

Suliformes

 * Fregatidae: frigatebirds
 * Sulidae: gannets
 * Anhingidae: darters
 * Phalacrocoracidae: cormorants

Pelecaniformes

 * Scopidae: hamerkop
 * Balaenicipitidae: shoebill
 * Pelecanidae: pelicans

Ardeiformes

 * Threskiornithidae: ibises and spoonbills
 * Ardeidae: herons, bitterns and egrets