Plumbeous ibis
Theristicus caerulescens (Vieillot, 1817)
The plumbeous ibis (Theristicus caerulescens) is a species in the family Threskiornithidae, order Pelecaniformes. Recorded adults weigh about 1.5 kg. Its IUCN Red List status is Least Concern.

Quick facts about the plumbeous ibis
- Weight
- 1.5 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Invertivoresrc for Diet
- Main food
- Not recorded
- Habitat
- grasslandsrc for Habitat
- Young per litter or clutch
- 2.4 – 2.7src for Young per litter or clutch
- Lifestyle
- Terrestrialsrc for Lifestyle
- Migration
- Sedentarysrc for Migration
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the plumbeous ibis live?
Not recorded
What is the plumbeous ibis?
The plumbeous ibis (Theristicus caerulescens), also formerly called the blue ibis, is a large distinctive ibis species endemic to parts of central South America.
From the Wikipedia article “Plumbeous ibis” (en.wikipedia.org/w/index.php?title=Plumbeous_ibis&oldid=1314962879), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
What does the plumbeous ibis sound like?
Is the plumbeous ibis endangered?
The plumbeous ibis is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the plumbeous ibis classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPelecaniformes
- familyThreskiornithidae
- genusTheristicus
- SpeciesTheristicus caerulescens (Vieillot, 1817)
Synonyms Geronticus coerulescens, Harpiprion caerulescens, Harpiprion caerulescens caerulescens, Ibis caerulescens, Ibis coerulescens, Ibis plumbeus
Other names and names in other languages (32)
- أبو منجل الرصاصيArabic
- Свінцовы ібісBelarusian
- ibis plumbiCatalan
- ibis běločelýCzech
- Blygrå IbisDanish
- StirnbandibisGerman
- plumba ibisoEsperanto
- Bandurria moraSpanish
- Bandurria Mora(Argentina)Spanish
- halliibisEstonian
- harmaaiibisFinnish
- Ibis plombéFrench
- Kurukáu hovyGuarani
- bjeločeli ibisCroatian
- kék íbiszHungarian
- Ibis piombatoItalian
- ハイイロトキJapanese
- baltakaktis ibisLithuanian
- Grijze IbisDutch
- ibis ołowianyPolish
- curicaca-realPortuguese
- Curicaca-cinzaPortuguese
- íbis-cinzentaPortuguese
- Maçarico-realPortuguese
- Свинцовый ибисRussian
- ibis močiarnySlovak
- Tamnosivi ibisSerbian
- grå ibisSwedish
- Kurşuni AynakTurkish
- ібіс блакитнийUkrainian
- 鉛鹮Chinese
- 铅色鹮Chinese
Catalogue of LifeWikipediaiNaturalistWikidataWoRMSIUCN Red List
Relatives of the plumbeous ibis
Other species in the same genus Theristicus.

Black-faced ibis
Theristicus melanopis

Buff-necked ibis
Theristicus caudatus
Andean ibis
Theristicus branickii
ComparePlumbeous ibis vs Black-faced ibisPlumbeous ibis vs Buff-necked ibisPlumbeous ibis vs Andean ibis
Common questions
Answered only where our data holds the answer.
How big is the plumbeous ibis?
An adult plumbeous ibis weighs 1.5 kg, according to values recorded on Wikidata.
Is the plumbeous ibis endangered?
The plumbeous ibis is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
What kind of animal is the plumbeous ibis?
The plumbeous ibis (Theristicus caerulescens) belongs to the family Threskiornithidae in the order Pelecaniformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Plumbeous ibis (Theristicus caerulescens). Retrieved from https://creaturedata.com/animals/plumbeous-ibis
“Plumbeous ibis (Theristicus caerulescens).” CreatureData, 2026, https://creaturedata.com/animals/plumbeous-ibis.
@misc{plumbeous_ibis_2026,
title = {Plumbeous ibis (Theristicus caerulescens)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/plumbeous-ibis},
note = {Data as of 2026-11-11}
}