Theristicus

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Theristicus
Theristicus melanopis 1 Frank Vassen.jpg
Black-faced ibis.
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Threskiornithidae
Subfamily: Threskiornithinae
Genus: Theristicus
Wagler, 1832
Type species
Tantalus melanopis
Gmelin, 1789

Theristicus is a genus of birds in the family Threskiornithidae. They are found in open, grassy habitats in South America. All have a long, decurved dark bill, relatively short reddish legs that do not extend beyond the tail in flight (unlike e.g. Eudocimus and Plegadis ), and at least the back is grey.

Taxonomy

The genus Theristicus was erected by the German naturalist Johann Georg Wagler in 1832 with the black-faced ibis as the type species. [1] [2] The name is from the Ancient Greek theristikos meaning "of reaping". [3] The genus contains four species. [4]

Genus Theristicus Wagler, 1832 – four species
Common nameScientific name and subspeciesRangeSize and ecologyIUCN status and estimated population
Plumbeous ibis

BANDURRIA MORA Harpiprioncaerulescens.jpg

Theristicus caerulescens
(Vieillot, 1817)
south-western Brazil, especially in southern Mato Grosso and Rio Grande do Sul; Paraguay, especially in the Chaco and in the Paraguayan section of the Parana Basin; Uruguay; north-eastern Argentina and northern and eastern Bolivia
Plumbeousibismap.png
Size:

Habitat:

Diet:
 LC 


Buff-necked ibis

Buff-necked ibis (Theristicus caudatus).JPG

Theristicus caudatus
(Boddaert, 1783)

Two subspecies
  • T. c. caudatus (Boddaert, 1783)
  • T. c. hyperorius Todd, 1948
northern and central South America in Colombia, Venezuela, the Guianas and Brazil
Theristicus caudatus map.svg
Size:

Habitat:

Diet:
 LC 


Black-faced ibis

Wildlife in and around Reserva Laguna Nimez in El Calafate, Argentina - there is some uncertainty here amongst some authorities- is this the Black Faced Ibis (Theristicus melanops) - OR - the (24560030193).jpg

Theristicus melanopis
von Berlepsch & Stolzmann, 1894
central Argentina and Chile
Theristicus melanopis map.svg
Size:

Habitat:

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 LC 


Andean ibis

Theristicus branickii 63684956.jpg

Theristicus branickii
(Gmelin, 1789)
western South America
Theristicus branickii map.svg
Size:

Habitat:

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 NT 


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References

  1. Wagler, Johann Georg (1832). "Neue Sippen und Gattungen der Säugthiere und Vögel". Isis von Oken (in German and Latin). 1832. cols 1218–1235 [1231].
  2. Mayr, Ernst; Cottrell, G. William, eds. (1979). Check-list of Birds of the World. Vol. 1 (2nd ed.). Cambridge, Massachusetts: Museum of Comparative Zoology. p. 258.
  3. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p.  384. ISBN   978-1-4081-2501-4.
  4. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2022). "Ibis, spoonbills, herons, Hamerkop, Shoebill, pelicans". IOC World Bird List Version 12.2. International Ornithologists' Union. Retrieved 25 November 2022.