The Red List Assessment
BirdLife International 2016. Bubulcus ibis. The IUCN Red List of Threatened Species 2016: e.T22697109A86454050. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22697109A86454050.en. Accessed on 21 October 2026.
Language
English
Last assessed
01 October 2016
Scope of assessment
Global
Population trend
Increasing
Number of mature individuals
Habitat and ecology
Forest, Grassland, Wetlands (inland), Artificial/Terrestrial
Geographic range
-
Extant (resident)
-
Extant (breeding)
-
Extant (non-breeding)
-
Extant (passage)
-
Extant (seasonality uncertain)
-
Possibly Extinct
Assessment Information
Global Assessment
IUCN Red List Category and Criteria - Global Assessment
Date assessed
01 October 2016
Year published
2016
Assessment Information in detail
Geographic Range
Native
Extant (resident)
Iraq; Israel; Italy; Portugal; Russian Federation; Timor-Leste; Türkiye; Virgin Islands, British; Virgin Islands, U.S.
Extant (breeding)
Armenia; Australia; Azerbaijan; Canada; Grenada; Hong Kong Special Administrative Region of China; Kazakhstan; Korea, Democratic People's Republic of; Maldives; Mali; Montenegro; Netherlands; Puerto Rico; Romania; Russian Federation (European Russia); Serbia; Spain (Canary Is.); Tanzania, United Republic of; Turkmenistan; United States; Uruguay
Extant (non-breeding)
Belize; Costa Rica; Gibraltar; Guam; Kuwait; Marshall Islands; Micronesia, Federated States of ; Northern Mariana Islands; Oman; Palau; Palestine, State of; United States Minor Outlying Islands
Extant (passage)
Cyprus; Lebanon; Qatar
Extant (seasonality uncertain)
Macao Special Administrative Region of China; Saint Barthélemy
Extant (resident)
Algeria; Angola; Anguilla; Antigua and Barbuda; Argentina; Aruba; Bahamas; Bahrain; Bangladesh; Barbados; Benin; Bermuda; Bhutan; Bolivia, Plurinational States of; Bonaire, Sint Eustatius and Saba (Bonaire, Saba, Sint Eustatius); Botswana; Brazil; Brunei Darussalam; Burkina Faso; Burundi; Cabo Verde; Cambodia; Cameroon; Cayman Islands; Central African Republic; Chad; Chile; China; Cocos (Keeling) Islands; Colombia; Comoros; Congo; Congo, The Democratic Republic of the; Cuba; Curaçao; Côte d'Ivoire; Djibouti; Dominica; Dominican Republic; Ecuador; Egypt; El Salvador; Equatorial Guinea; Eritrea; Eswatini; Ethiopia; Falkland Islands (Malvinas); France; French Guiana; Gabon; Gambia; Georgia; Ghana; Greece; Guadeloupe; Guatemala; Guinea; Guinea-Bissau; Guyana; Haiti; Honduras; India; Indonesia; Iran, Islamic Republic of; Japan; Jordan; Kenya; Korea, Republic of; Lao People's Democratic Republic; Lesotho; Liberia; Libya; Madagascar; Malawi; Malaysia; Martinique; Mauritania; Mauritius; Mayotte; Mexico; Montserrat; Morocco; Mozambique; Myanmar; Namibia; Nepal; New Zealand; Nicaragua; Niger; Nigeria; Pakistan; Panama; Papua New Guinea; Paraguay; Peru; Philippines; Rwanda; Réunion; Saint Helena, Ascension and Tristan da Cunha; Saint Kitts and Nevis; Saint Lucia; Saint Martin (French part); Saint Vincent and the Grenadines; Sao Tome and Principe; Saudi Arabia; Senegal; Seychelles; Sierra Leone; Singapore; Sint Maarten (Dutch part); Somalia; South Africa; South Georgia and the South Sandwich Islands; South Sudan; Spain; Sri Lanka; Sudan; Suriname; Syrian Arab Republic; Taiwan, Province of China; Thailand; Togo; Trinidad and Tobago; Tunisia; Turks and Caicos Islands; Uganda; United Arab Emirates; Venezuela, Bolivarian Republic of; Viet Nam; Western Sahara; Yemen; Zambia; Zimbabwe
Extant & Introduced (breeding)
British Indian Ocean Territory; United States (Hawaiian Is.)
Extant & Introduced (passage)
Ecuador (Galápagos)
Extant & Introduced
Jamaica
Extant & Vagrant (non-breeding)
Luxembourg; Russian Federation (Eastern Asian Russia)
Extant & Vagrant (passage)
Saint Pierre and Miquelon
Extant & Vagrant
Albania; Antarctica; Austria; Belarus; Belgium; Bosnia and Herzegovina; Christmas Island; Croatia; Czechia; Denmark; Finland; Germany; Hungary; Iceland; Ireland; Latvia; Liechtenstein; Lithuania; Malta; New Caledonia; Norfolk Island; North Macedonia; Norway; Poland; Slovenia; Sweden; Switzerland; Tajikistan; United Kingdom; Uzbekistan
Extant & Origin Uncertain
Afghanistan
Extinct & Vagrant
Bulgaria
Number of locations
Upper elevation limit
4,080 metres
Lower elevation limit
Upper depth limit
Lower depth limit
Geographic Range in detail
Population
Current population trend
Number of mature individuals
Population severely fragmented
No
Continuing decline of mature individuals
Unknown
Population in detail
Habitat and Ecology
Habitat type
Forest, Grassland, Wetlands (inland), Artificial/Terrestrial
Generation length (years)
8.1 years
Congregatory
Congregatory (and dispersive)
Movement patterns
Full Migrant
Continuing decline in area, extent and/or quality of habitat
Unknown
Habitat and Ecology in detail
Threats
Threats in detail
Use and Trade
Sport hunting/specimen collecting
Pets/display animals, horticulture
Other household goods
Food - human
Use and Trade in detail
Conservation Actions
In-place research and monitoring
- Action Recovery Plan : No
- Systematic monitoring scheme : Yes
In-place land/water protection
- Conservation sites identified : Yes, over entire range
- Occurs in at least one protected area : Yes
- Invasive species control or prevention : No
In-place species management
- Successfully reintroduced or introduced benignly : No
- Subject to ex-situ conservation : No
In-place education
- Subject to recent education and awareness programmes : No
- Included in international legislation : Yes
- Subject to any international management / trade controls : No
Conservation Actions in detail
Bibliography
Red List Bibliography
External Data
Images and External Links
Images and External Links in detail
CITES Legislation from Species+
Data source
The information below is from the Species+ website.
CITES Legislation from Species+ in detail
Ex situ data from Species360
Data source
The information below is from Species360's Zoological Information Management System (ZIMS)
Ex situ data from Species360 in detail
Studies and Actions from Conservation Evidence
Data source
The information below is from the Conservation Evidence website.