Green-backed Heron Butorides striata


Taxonomic note
Butorides striata (del Hoyo and Collar 2014) was previously split as B. striata and B. virescens following AOU (2003), and before then B. striata was split as B. striatus and B. sundevalli following Sibley and Monroe (1990, 1993). Gender agreement of B. striata follows David and Gosselin (2002b).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2014 Least Concern
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass 184 g

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 303,000,000 medium
Extent of Occurrence non-breeding (km2) 286,000,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 0
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 5.1 - - -

Population justification: The global population has not been estimated following recent taxonomic changes.

Trend justification: The overall population trend is decreasing, although some populations may be stable and others have unknown trends (Wetlands International 2006).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Angola N Extant Yes
Anguilla (to UK) N Extant
Antigua and Barbuda U Extant
Argentina N Extant
Aruba (to Netherlands) N Extant
Australia N Extant
Bahamas N Extant
Bahrain V Extant Yes
Bangladesh N Extant
Barbados U Extant
Belize N Extant Yes
Benin N Extant
Bermuda (to UK) N Extant Yes
Bhutan N Extant
Bolivia N Extant
Bonaire, Sint Eustatius and Saba (to Netherlands) N Extant
Botswana N Extant
Brazil N Extant
British Indian Ocean Territory N Extant Yes
Brunei N Extant
Burkina Faso N Extant
Burundi N Extant
Cambodia N Extant
Cameroon N Extant
Canada N Extant Yes
Cayman Islands (to UK) N Extant
Central African Republic N Extant
Chad N Extant
Chile N Extant
China (mainland) N Extant
Christmas Island (to Australia) V Extant
Colombia N Extant
Comoros N Extant
Congo N Extant
Congo, The Democratic Republic of the N Extant
Costa Rica N Extant
Côte d'Ivoire N Extant
Cuba N Extant
Curaçao (to Netherlands) N Extant
Djibouti N Extant
Dominica N Extant
Dominican Republic N Extant
Ecuador N Extant
Egypt N Extant
El Salvador N Extant
Equatorial Guinea N Extant
Eritrea N Extant
Eswatini N Extant
Ethiopia N Extant
Falkland Islands (Malvinas) V Extant
Fiji N Extant Yes
French Guiana N Extant
French Polynesia N Extant
Gabon N Extant
Gambia N Extant
Ghana N Extant
Greenland (to Denmark) V Extant
Grenada N Extant
Guadeloupe (to France) N Extant
Guam (to USA) N Extant Yes
Guatemala N Extant
Guinea N Extant
Guinea-Bissau N Extant
Guyana N Extant
Haiti N Extant
Honduras N Extant
India N Extant
Indonesia N Extant
Iran, Islamic Republic of N Extant Yes
Israel N Extant Yes
Jamaica N Extant Yes
Japan N Extant
Jordan V Extant
Kenya N Extant
Laos N Extant
Liberia N Extant
Madagascar N Extant
Malawi N Extant
Malaysia N Extant
Maldives N Extant Yes
Mali N Extant
Martinique (to France) N Extant
Mauritania N Extant
Mauritius N Extant
Mayotte (to France) N Extant
Mexico N Extant
Micronesia, Federated States of N Extant Yes
Montserrat (to UK) N Extant
Mozambique N Extant
Myanmar N Extant
Namibia N Extant
Nepal N Extant
New Caledonia (to France) N Extant
Nicaragua N Extant
Niger N Extant
Nigeria N Extant
North Korea N Extant Yes
Northern Mariana Islands (to USA) N Extant Yes
Oman N Extant Yes
Pakistan N Extant
Palau N Extant Yes
Panama N Extant
Papua New Guinea N Extant
Paraguay N Extant
Peru N Extant
Philippines N Extant
Portugal V Extant
Puerto Rico (to USA) N Extant
Qatar N Extant Yes
Réunion (to France) N Extant
Russia N Extant
Russia (Asian) N Extant
Rwanda N Extant
São Tomé e Príncipe N Extant
Saudi Arabia N Extant Yes
Senegal N Extant
Seychelles N Extant
Sierra Leone N Extant
Singapore N Extant
Sint Maarten (to Netherlands) N Extant
Solomon Islands N Extant
Somalia N Extant
South Africa N Extant
South Georgia & the South Sandwich Islands N Extant
South Korea N Extant
South Sudan N Extant Yes
Sri Lanka N Extant
St Barthelemy (to France) N Extant
St Helena (to UK) V Extant
St Kitts and Nevis N Extant
St Lucia N Extant
St Martin (to France) N Extant
St Pierre and Miquelon (to France) N Extant
St Vincent and the Grenadines N Extant
Sudan N Extant
Suriname N Extant
Taiwan, China N Extant
Tanzania N Extant
Thailand N Extant
Timor-Leste N Extant Yes
Togo N Extant
Trinidad and Tobago N Extant
Turks and Caicos Islands (to UK) N Extant
Uganda N Extant
United Arab Emirates N Extant Yes
United Kingdom V Extant
Uruguay N Extant Yes
USA N Extant Yes
Vanuatu N Extant Yes
Venezuela N Extant
Vietnam N Extant
Virgin Islands (to UK) N Extant Yes
Virgin Islands (to USA) N Extant Yes
Yemen N Extant Yes
Zambia N Extant
Zimbabwe N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Iran, Islamic Republic of Sheedvar island
Iran, Islamic Republic of Khouran Straits
Iran, Islamic Republic of Khor Jask
Oman Barr al Hikman
Oman Duqm
Saudi Arabia Jiddah south corniche and port
Saudi Arabia Jizan Bay
Saudi Arabia Farasan Islands
Yemen Ta'izz wadis
Philippines Pagbilao and Tayabas Bay
Mexico Lagunas Costeras de Guerrero
Mexico Humedales Costeros del Norte de la Península de Yucatán
Canada Nottawasaga Island
Colombia Ciénaga Grande, Isla de Salamanca and Sabana Grande RAMSAR biosphere reserve
Ecuador Puerto Ayora
Ecuador Isla Floreana
Ecuador Champion y Gardner de Floreana
Ecuador Isla Española
Ecuador Isla San Cristóbal
Jamaica Black River Great Morass
Ecuador Humedales del Sur de Isabela
Ecuador Áreas costeras de Fernandina y del occidente de Isabela
Puerto Rico (to USA) El Yunque
Cayman Islands (to UK) Central Mangrove Wetland
Anguilla (to UK) Scrub Island
Bahamas Great Inagua
Bahamas Harrold and Wilson Ponds National Park
Bahamas Grog Pond
Bahamas Lucayan National Park
Bahamas Long Island and Hog Cay
Bahamas South Tarpum Bay
Dominican Republic Jaragua National Park
St Vincent and the Grenadines Ashton Wetland
St Vincent and the Grenadines Mustique Island
Antigua and Barbuda McKinnons Salt Pond
Antigua and Barbuda Fitches Creek Bay
Antigua and Barbuda Valley Church Bay
Antigua and Barbuda Potworks Dam
Antigua and Barbuda Offshore Islands
Bahamas Conception Island National Park
Bahamas North Atlantic Abaco Cays
Paraguay Río Negro - Pantanal
Costa Rica Caribbean lowlands and wetlands
Bahamas San Andros Pond
St Lucia Castries and Dennery Waterworks Reserve and Marquis
St Lucia Pitons (Qualibou and Canaries)
Bahamas Mangrove Cay
Bahamas Driggs Hill to Mars Bay
Bahamas Cay Sal
Bahamas Booby Rocks and Pirates Bay
Bahamas Southern Great Lake
Bahamas Low Cay, High Cay and Sandy Hook
Bahamas South Beach Tidal Flats
Bahamas Cat Island Wetlands
Bahamas Salt Cay
Bahamas Booby Island
St Lucia Point Sables
St Lucia Iyanola and Grande Anses, Esperance and Fond D'ors
St Lucia Mandelé Protected Landscape
Bonaire, Sint Eustatius and Saba (to Netherlands) Klein Bonaire, Bonaire
Aruba (to Netherlands) Tierra del Sol Salina
Aruba (to Netherlands) Bubali Wetlands
Antigua and Barbuda Bethesda Dam
Antigua and Barbuda Christian Cove
Antigua and Barbuda Hanson's Bay – Flashes
Virgin Islands (to USA) John Brewer's Bay
Virgin Islands (to USA) Southgate and Green Cay
Virgin Islands (to USA) Great Pond
Anguilla (to UK) Cove Pond
Guyana Maparri - Kanuku Mountains
Guyana North Rupununi - Karanambu Ranch
Guyana Crane Pond- Rupununi River
French Polynesia Baie de Port Phaéton et lagune de Mitirapa
Côte d'Ivoire Monogaga Classified Forest
Jamaica Font Hill
Colombia El Encanto de Guanapalo
Colombia Paramillo Natural National Park
Colombia Parque Nacional Natural Amacayacu
Colombia Parque Nacional Natural Chiribiquete
Colombia Bojonawi

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Marine Intertidal Salt Marshes (Emergent Grasses) suitable breeding
Marine Intertidal Salt Marshes (Emergent Grasses) suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Altitude 0 - 1900 m Occasional altitudinal limits  

Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - - Non-trivial Recent
Pets/display animals, horticulture - - - International Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Butorides striata. Downloaded from on 03/07/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from on 03/07/2022.