Cacatua tenuirostris
System : Terrestrial
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Aves
Psittaciformes
Psittacidae
  • Not Evaluated
    NE
  • No Alien Population
    NA
  • Data Deficient
    DD
  • Minimal Concern
    MC
  • Minor
    MN
  • Moderate
    MO
  • Major
    MR
  • Massive
    MV
  • General
  • Distribution
  • Impact
  • Management
  • Bibliography
  • Contact
Common name
 
Synonym
Similar species
Summary

Principal source:

Compiler:

Review:

Publication date:

Recommended citation: Global Invasive Species Database (2025) Species profile: Cacatua tenuirostris. Downloaded from http://iucngisd.org/gisd/speciesname/Cacatua+tenuirostris on 05-02-2025.

Countries (or multi-country features) with distribution records for Cacatua tenuirostris
ALIEN RANGE
NATIVE RANGE
Informations on Cacatua tenuirostris has been recorded for the following locations. Click on the name for additional informations.
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Location Status Invasiveness Occurrence Source
Details of Cacatua tenuirostris in information
Status
Invasiveness
Arrival date
Occurrence
Source
Introduction
Species notes for this location
Location note
Management notes for this location
Impact
Mechanism:
Outcome:
Ecosystem services:
Impact information
Red List assessed species 4: CR = 1; EN = 1; LC = 2;
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Management information
Bibliography
6 references found for Cacatua tenuirostris

Management information
Department of Environment and Conservation, Information for residents: Control of introduced corellas and lorikeets in the metropolitan area. Government of Western Australia.
General information
Department of Biodiversity, Conservation and Attractions. (2017). Fauna Notes - Corellas and Other Flocking Cockatoos.
Department of Environment and Conservation (2009). Pest Notes: Corellas and other flocking cockatoos. Government of Western Australia.
Strang, M., Bennett, T., Deeley, B., Barton, J. and Klunzinger, M. (2014). Introduced Corella Issues Paper. City of Bunbury: Bunbury, Western Australia.
Western Australian Museum (2015). Western long-billed corella.
Blythman, M., Porter, G. (2020). Movement of introduced Little Corellas Cacatua sanguinea and Long-billed Corellas C. tenuirostris in south-western Western Australia, Australian Field Ornithology 2020, 37, 48-55
Contact
The following 0 contacts offer information an advice on Cacatua tenuirostris
MN
Cacatua tenuirostris
Date assessed
2021-10-08
Year published
2023
Eicat category
MN (Minor)
Justification for EICAT assessment


The Long-billed Corella poses an environmental threat to Black cockatoos by out-competing for nest sites, their ability to remove eggs from the nest hollow and to kill and maim advanced nestling. There is no evidence that this has cause a decline of these species (Western Australia Museum, 2015).
Confidence rating
Low
Mechanism(s) of maximum impact
Competition; Predation
Countries of most severe impact
Australia
Description of impacts
The Long-billed Corella competes with native bird species, kills nestlings of Black Cockatoos and causes damage to their roosting trees in Western Australia.
Assessor
Thomas Evans; Tom Allmert
Contributors
Reviewers
EICAT authority
Recommended citation
Thomas Evans, Tom Allmert (2025). Cacatua tenuirostris. IUCN Environmental Impact Classification for Alien Taxa (EICAT).