HeronConservation

The IUCN-SCC Heron Specialist Group

Heron Red List

The Heron Red List (Version 2024-2) is shown below.

This authority for the global classification of the conservation status of species is the IUCN. It is published periodically as the IUCN Red List of Threatened Species. BirdLife International is the listing authority for birds. HeronConservation partners with BirdLife International on its periodic assessments for herons. The Heron Red List is the same as the IUCN list. Like all species, herons may be classified the following categories, LC = Least Concern, NT = Near Threatened, VU = Vulnerable, EN = Endangered, CR = Critically Endangered, EW = Extinct in the Wild, and EX =Extinct. More information on the meaning of these categories may be found in the IUCN Red List Categories & Criteria document.

The IUCN process is conducted at the species level, whereas HeronConservation does its assessments at a population level. So for some species the classification of a species may differ from that of one or more of its populations. For information on the listing assessment process, please see the IUCN Website.

The IUCN Assessment in some cases identifies species, uses a listing order, and uses scientific and English names that are at times deviant from those used by HeronConservation. There are a number of reasons for these differences, mainly that HeronConservation, being concerned only with one group of species can tracks and implement changes within its group more readily, whereas IUCN needs to maintain a more conservative approach to such changes across its periodic assessments and needs to maintain a common global process. As there is not a problem in identifying which species is being referred to, HeronConservation has chosen to retain the IUCN order and names to maintain its consistency with the Global Red List.

HeronConservation will continue to partner with BirdLife in its evaluation of the status of heron species. You are welcome to participate in this process by communicating your data and information to the HeronConservation Co-chairs or Steering Committee Members.

Status Trend Scientific Name English Name Last assessed
Extinct - Nyctanassa carcinocatactes Bermuda Night Heron 16 Sep 2022
Nycticorax duboisi Reunion Night Heron 04 Jul 2024
Nycticorax mauritianus Mauritius Night Heron 04 Jul 2024
Nycticorax megacephalus Rodrigues Night Heron 04 Jul 2024
Ixobrychus novaezelandiae New Zealand Little Bittern 30 Sep 2023
Critically Endangered Decreasing Ardea insignis White-bellied Heron 18 Aug 2018
Endangered Decreasing Ardea humbloti Madagascar Heron 01 Oct 2016
Ardea occidentalis Great White Heron 12 Aug 2020
Ardeola idae Malagasy Pond Heron 16 Nov 2020
Oroanassa magnifica White-eared Night Heron 01 Oct 2016
Vulnerable Decreasing Egretta eulophotes Chinese Egret 01 Oct 2016
Egretta vinaceigula Slaty Egret 01 Oct 2016
Gorsachius goisagi Japanese Night Heron 18 Aug 2020
Botaurus poiciloptilus Australasian Bittern 06 Jun 2022
Near Threatened Decreasing Egretta rufescens Reddish Egret 24 Aug 2020
Zonerodius heliosylus Forest Bittern 01 Oct 2017
Agamia agami Agami Heron 15 Feb 2023
Least Concern Increasing Ardea brachyrhyncha Yellow-billed Egret 22 Jul 2024
Ardea herodias Great Blue Heron 13 Aug 2020
Egretta ardesiaca Black Heron 22 Jul 2024
Egretta garzetta Little Egret 01 Oct 2016
Egretta thula Snowy Egret 01 Oct 2016
Bubulcus ibis Cattle Egret 01 Oct 2016
Stable Ardea cocoi Cocoi Heron 06 Dec 2019
Ardea goliath Goliath Heron 01 Oct 2016
Ardea pacifica White-necked Heron 01 Oct 2016
Butorides striata Green-backed Heron 06 Dec 2019
Ardeola bacchus Chinese Pond Heron 22 Jul 2024
Egretta gularis Western Reef-egret 01 Oct 2016
Egretta sacra Pacific Reef-egret 07 Aug 2018
Egretta tricolor Tricolored Heron 01 Oct 2016
Syrigma sibilatrix Whistling Heron 22 Jul 2024
Nyctanassa violacea Yellow-crowned Night Heron 09 Aug 2018
Nycticorax caledonicus Nankeen Night Heron 22 Jul 2024
Botaurus pinnatus Pinnated Bittern 06 Dec 2019
Ixobrychus exilis Least Bittern 01 Oct 2016
Ixobrychus involucris Stripe-backed Bittern 22 Jul 2024
Tigrisoma lineatum Rufescent Tiger-heron 19 Aug 2022
Decreasing Ardea intermedia Intermediate Egret 13 Aug 2020
Ardea melanocephala Black-headed Heron 22 Jul 2024
Ardea purpurea Purple Heron 14 Aug 2019
Ardea sumatrana Great-billed Heron 22 Jul 2024
Egretta caerulea Little Blue Heron 01 Oct 2016
Pilherodius pileatus Capped Heron 06 Dec 2019
Nycticorax nycticorax Black-crowned Night Heron 01 Oct 2016
Calherodius leuconotus White-backed Night Heron 06 Aug 2018
Botaurus lentiginosus American Bittern 01 Oct 2016
Botaurus stellaris Eurasian Bittern 01 Oct 2016
Ixobrychus dubius Australian Little Bittern 01 Oct 2016
Ixobrychus eurhythmus Schrenck's Bittern 01 Oct 2016
Ixobrychus minutus Common Little Bittern 09 Aug 2018
Zebrilus undulatus Zigzag Heron 22 Nov 2021
Tigrisoma fasciatum Fasciated Tiger-heron 02 Sep 2022
Tigrisoma mexicanum Bare-throated Tiger-heron 07 Aug 2018
Tigriornis leucolopha White-crested Tiger-heron 07 Aug 2018
Cochlearius cochlearius Boat-billed Heron 06 Aug 2018
Unknown Ardea alba Great White Egret 01 Oct 2016
Ardea cinerea Grey Heron 13 Aug 2019
Ardea plumifera Plumed Egret 22 Jul 2024
Ardeola grayii Indian Pond Heron 22 Jul 2024
Ardeola ralloides Squacco Heron 09 Aug 2018
Ardeola rufiventris Rufous-bellied Heron 01 Oct 2016
Ardeola speciosa Javan Pond Heron 01 Oct 2016
Egretta novaehollandiae White-faced Heron 01 Oct 2016
Egretta picata Pied Heron 22 Jul 2024
Gorsachius melanolophus Malay Night Heron 01 Oct 2016
Ixobrychus cinnamomeus Cinnamon Bittern 22 Jul 2024
Ixobrychus flavicollis Black Bittern 22 Jul 2024
Ixobrychus sinensis Yellow Bittern 22 Jul 2024
Ixobrychus sturmii Dwarf Bittern 22 Jul 2024