Cacatua galerita
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 galerita. Downloaded from http://iucngisd.org/gisd/speciesname/Cacatua+galerita on 05-02-2025.

Countries (or multi-country features) with distribution records for Cacatua galerita
ALIEN RANGE
NATIVE RANGE
Informations on Cacatua galerita has been recorded for the following locations. Click on the name for additional informations.
Lorem Ipsum
Location Status Invasiveness Occurrence Source
Details of Cacatua galerita 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:
Management information
Bibliography
7 references found for Cacatua galerita

Management information
Auckland Council (2020) Auckland Regional Pest Management Plan 2020 - 2030, Auckland Council Environmental Services
Costion CM, Kitalong AH, Perlman S and Edwards W (2013) Palau’s rare and threatened palm Ponapea palauensis (Arecaceae): Population density, distribution, and threat assessment. Pac. Sci. 67:599 - 608.
Loope,LL, Howarth FG, Kraus F and Pratt TK (2001) Newly emergent and future threats of alien species to pacific birds and ecosystems. Studies in Avian Biology 22:291-304.
Runde DE, Pitt WC & Foster JT (2007) Population ecology and some potential impacts of emerging populations of exotic parrots. Manag. Vertebr. Invasive Species. Pap. 42. 42.
General information
Anon (2002) Sulphur Crested Cockatoo (Kakatoe gelerita), Horizons Regional Council.
Styche A (2000) Distribution and behavioural ecology of the sulphur-crested cockatoo (Cacatua galerita L.) in New Zealand. Unpublished. Victoria University of Wellington, New Zealand.
Styche A (2013) Sulphur-crested cockatoo. In Miskelly, C.M. (ed.) New Zealand Birds Online
Contact
The following 0 contacts offer information an advice on Cacatua galerita
MO
Cacatua galerita
Date assessed
2021-10-22
Year published
2023
Eicat category
MO (Moderate)
Justification for EICAT assessment


The Sulphur-crested Cockatoo was documented killing entire trees of Hydriastele palauensis by feeding on the terminal bud or "palm heart", causing the decline of this species. However, Hydriastele palauensis can be found throughout the limestone islands and today is common, lending some doubt to claims that it was once widespread, but has declined due to parrot predation (Costion et al., 2013).
Confidence rating
Low
Mechanism(s) of maximum impact
Grazing/herbivory/browsing
Countries of most severe impact
Republic of Palau
Description of impacts
The Sulphur-crested Cockatoo feeds on native invertebrate and plant species in New Zealand. It is believed to have caused the decline of a native palm species on Palau. To date it has a neglible competition impact on native bird species.
Assessor
Thomas Evans; Tom Allmert
Contributors
Reviewers
EICAT authority
Recommended citation
Thomas Evans, Tom Allmert (2025). Cacatua galerita. IUCN Environmental Impact Classification for Alien Taxa (EICAT).