Covering topics in Nature, Technology and Culture


The ibises (collective plural ibis; classical plurals ibides and ibes) are a group of long-legged wading birds in the family Threskiornithidae. (from the greek word Greek thrēskeia meaning religion)


Straw necked Ibis ( Threskiornis spinicollis). image:R.Conan-Davies

They all have long, down-curved bills, and usually feed as a group, probing mud for food items, usually crustaceans. Most species nest in trees, often with spoonbills or herons.


Straw necked Ibis ( Threskiornis spinicollis) are characterised by their distinctive straw like plumage on their necks. image: R.Conan-Davies

The word ibis comes from Latin ibis from Greek ἶβις ibis from Egyptian hb, hīb.


There are 28 extant species and 2 extinct species of ibis.

Genus Threskiornis

  • African sacred ibis, Threskiornis aethiopicus
  • Malagasy sacred ibis, Threskiornis bernieri
  • †Reunion ibis, Threskiornis solitarius (extinct)
  • Black-headed ibis, Threskiornis melanocephalus
  • Australian white ibis, Threskiornis molucca
  • Straw-necked ibis, Threskiornis spinicollis

Genus Pseudibis

  • Red-naped ibis, Pseudibis papillosa
  • White-shouldered ibis, Pseudibis davisoni
  • Giant ibis, Pseudibis gigantea


Red-naped ibis, Pseudibis papillosa. image: wikipedia/Niraj Vijaykumar

Genus Geronticus

  • Northern bald ibis, Geronticus eremita
  • Southern bald ibis, Geronticus calvus

Genus Nipponia

  • Crested ibis, Nipponia nippon


A crested ibis image: wikipedia/Danielinblue

Genus Bostrychia

  • Olive ibis, Bostrychia olivacea
  • Sao Tome ibis, Bostrychia bocagei
  • Spot-breasted ibis, Bostrychia rara
  • Hadada ibis, Bostrychia hagedash
  • Wattled ibis, Bostrychia carunculata

Genus Theristicus

  • Plumbeous ibis, Theristicus caerulescens
  • Buff-necked ibis, Theristicus caudatus
  • Black-faced ibis, Theristicus melanopis

Genus Cercibis

  • Sharp-tailed ibis, Cercibis oxycerca

Genus Mesembrinibis

  • Green ibis, Mesembrinibis cayennensis

Genus Phimosus

  • Bare-faced ibis, Phimosus infuscatus

Genus Eudocimus

  • American white ibis, Eudocimus albus
  • Scarlet ibis, Eudocimus ruber


A Scarlet ibis, Eudocimus ruberimage: Bjørn Christian Tørrissen 

Genus Plegadis

  • Glossy ibis, Plegadis falcinellus
  • White-faced ibis, Plegadis chihi
  • Puna ibis, Plegadis ridgwayi

Genus Lophotibis

  • Madagascar ibis, Lophotibis cristata

An extinct species, the Jamaican ibis or clubbed-wing ibis (Xenicibis xympithecus) was uniquely characterized by its club-like wings.

Source: Ibis. (2014, December 24). In Wikipedia, The Free Encyclopedia. Retrieved 07:54, January 30, 2015, from