Theristicus Knowpia

Theristicus
	Black-faced ibis.
Scientific classification
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 edit

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 name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Plumbeous ibis	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	Size: Habitat: Diet:	LC
Buff-necked ibis	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	Size: Habitat: Diet:	LC
Black-faced ibis	Theristicus melanopis von Berlepsch & Stolzmann, 1894	central Argentina and Chile	Size: Habitat: Diet:	LC
Andean ibis	Theristicus branickii (Gmelin, 1789)	western South America	Size: Habitat: Diet:	NT

References edit

^ Wagler, Johann Georg (1832). "Neue Sippen und Gattungen der Säugthiere und Vögel". Isis von Oken (in German and Latin). cols 1218–1235 [1231].
^ 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.
^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 384. ISBN 978-1-4081-2501-4.
^ 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.

Matheu, E., & J. del Hoyo (1992). Family Threskiornithidae (Ibises and Spoonbills). pp. 472–506 in: del Hoyo, J., A. Elliott, & J. Sargatal (editors). Handbook of the Birds of the World. Vol. 1. Ostrich to Ducks. Lynx Edicions, Barcelona. ISBN 84-87334-10-5

[1] Wagler, Johann Georg (1832). "Neue Sippen und Gattungen der Säugthiere und Vögel". Isis von Oken (in German and Latin). 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.

[ioc-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.

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Summary

Taxonomy edit

References edit