Animalia > Chordata > Aves > Charadriiformes > Laridae > Chroicocephalus > Chroicocephalus saundersiChroicocephalus saundersi (Saunders's Gull)Synonyms: Larus saundersi; Saundersilarus saundersi (homotypic) Saunders's gull or the Chinese black-headed gull (Chroicocephalus saundersi) is a species of gull in the Laridae family.It is found in China, Hong Kong, Japan, North Korea, South Korea, Macau, Russia, Taiwan, and Vietnam.Its natural habitats are estuarine waters and intertidal marshes.As with many other gulls, it has traditionally been placed in the genus Larus, but based on phylogenetic work some have moved it to Chroicocephalus, while others argue it is sufficiently distinct for placement in the monotypic Saundersilarus.It is threatened by habitat loss. One of its few remaining strongholds are the Yancheng Coastal Wetlands, which hosts about 20% of the world's population. |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 5.83724 EDGE Score: 3.30868 |
Adult Weight [1] | 195 grams | Male Weight [4] | 198 grams | | Diet [2] | Carnivore (Invertebrates), Piscivore | Diet - Fish [2] | 40 % | Diet - Invertibrates [2] | 60 % | Forages - Ground [2] | 50 % | Forages - Water Surface [2] | 50 % | | Clutch Size [3] | 3 | Wing Span [1] | 35 inches (.89 m) |
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Name |
Countries |
Ecozone |
Biome |
Species |
Report |
Climate |
Land Use |
Amur meadow steppe |
China, Russia |
Palearctic |
Flooded Grasslands and Savannas |
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Bohai Sea saline meadow |
China |
Palearctic |
Flooded Grasslands and Savannas |
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Central China loess plateau mixed forests |
China |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Changbai Mountains mixed forests |
China, Dem. People's Rep of Korea |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Changjiang Plain evergreen forests |
China |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Da Hinggan-Dzhagdy Mountains conifer forests |
China, Russia |
Palearctic |
Temperate Coniferous Forests |
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Daurian forest steppe |
China, Mongolia, Russia |
Palearctic |
Temperate Grasslands, Savannas, and Shrublands |
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Hainan Island monsoon rain forests |
China |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Huang He Plain mixed forests |
China |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Jian Nan subtropical evergreen forests |
China |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Manchurian mixed forests |
Republic of Korea, Dem. People's Rep of Korea, China, Russia |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Mongolian-Manchurian grassland |
China, Mongolia |
Palearctic |
Temperate Grasslands, Savannas, and Shrublands |
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Nansei Islands subtropical evergreen forests |
Japan |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Nenjiang River grassland |
China |
Palearctic |
Flooded Grasslands and Savannas |
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Northeast China Plain deciduous forests |
China |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Northern Vietnam lowland rain forests |
Viet Nam |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Red River freshwater swamp forests |
Viet Nam |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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South China-Vietnam subtropical evergreen forests |
China, Viet Nam |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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South Taiwan monsoon rain forests |
Taiwan |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Southern Korea evergreen forests |
South Korea |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Suiphun-Khanka meadows and forest meadows |
China, Russia |
Palearctic |
Flooded Grasslands and Savannas |
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Taiheiyo evergreen forests |
Japan |
Palearctic |
Temperate Broadleaf and Mixed Forests |
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Taiwan subtropical evergreen forests |
Taiwan |
Indo-Malayan |
Tropical and Subtropical Moist Broadleaf Forests |
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Yellow Sea saline meadow |
China |
Palearctic |
Flooded Grasslands and Savannas |
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Name |
IUCN Category |
Area acres |
Location |
Species |
Website |
Climate |
Land Use |
Arao-higata National Wildlife Protection Area |
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1863 |
Kyushu, Japan |
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Name |
Location |
IBA Criteria |
Website |
Climate |
Land Use |
An Hai |
Vietnam |
A1 |
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Aogu Wetlands |
Taiwan |
A1, A4i, A4iii |
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Asan Bay (including Asan-ho lake and Sapgyo-ho lake) |
South Korea |
A1, A4i, A4iii |
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Beidaihe |
China (mainland) |
A1, A4i, A4iii |
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Beimen |
Taiwan |
A1 |
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Budai Wetlands |
Taiwan |
A1, A4i |
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Cheonsu Bay |
South Korea |
A1, A4i, A4iii |
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Chongming Dongtan Nature Reserve |
China (mainland) |
A1, A4i, A4iii |
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Chu'an |
Taiwan |
A1 |
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Dongjin estuary |
South Korea |
A1, A4i, A4iii |
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Dongzhaigang Nature Reserve |
China (mainland) |
A1, A4i, A4iii |
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Futian Nature Reserve |
China (mainland) |
A1, A4i, A4iii |
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Geum-gang river and estuary |
South Korea |
A1, A4i, A4iii |
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Hakata bay |
Japan |
A1, A4i |
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Hanbao Wetlands |
Taiwan |
A1, A4i |
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Hikawa estuary, Shiranui |
Japan |
A1, A4i |
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Hsinchu City Coastal Area |
Taiwan |
A1, A4i |
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Inner Ariake bay |
Japan |
A1, A4i |
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Inner Deep Bay and Shenzhen River catchment area |
Hong Kong |
A1, A4i, A4iii |
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Kamogawa estuary |
Japan |
A1, A4i |
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Kaomei Wetlands |
Taiwan |
A1, A4i |
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Kinmen National Park |
Taiwan |
A1, A4i |
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Kumakawa estuary |
Japan |
A1, A4i |
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Lanyang River Estuary |
Taiwan |
A1, A4i |
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Luan He Estuary |
China (mainland) |
A1, A4i, A4iii |
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Mangyeong estuary |
South Korea |
A1, A4i, A4iii |
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Min Jiang Estuary |
China (mainland) |
A1, A4i, A4iii |
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Nakatsu and Usa tidal flats |
Japan |
A1, A4i |
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Nakdong-gang estuary |
South Korea |
A1, A4i, A4iii |
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Namyang Bay |
South Korea |
A1, A4i, A4iii |
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Nanliu Jiang Estuary |
China (mainland) |
A1 |
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Nghia Hung |
Vietnam |
A1, A4i, A4iii |
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Pohtzi River Estuary |
Taiwan |
A1, A4i |
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Poyang Hu wetlands |
China (mainland) |
A1, A4i, A4iii |
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Shuangtai (Shuangtaizi) Estuary and Inner Gulf of Liaodong |
China (mainland) |
A1, A4i, A4iii |
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Sihwa-ho lake |
South Korea |
A1, A4i, A4iii |
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Sone tidal flat |
Japan |
A1, A4i |
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Suncheon Bay |
South Korea |
A1, A4i |
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Tacheng Wetlands |
Taiwan |
A1, A4i |
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Taedong River estuary |
North Korea |
A1, A4i |
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Taizhou Wan |
China (mainland) |
A1, A4i |
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Tatu Rivermouth Wildlife Refuge |
Taiwan |
A1, A4i |
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Thai Thuy |
Vietnam |
A1, A4i |
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Tidal flat area of southern Ganghwa-do island |
South Korea |
A1, A4i, A4iii |
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Tidal flat area of Yeongjong-do island |
South Korea |
A1, A4i, A4iii |
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Tien Lang |
Vietnam |
A1, A4i |
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Tra Co |
Vietnam |
A1 |
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Wenzhou Wan |
China (mainland) |
A1, A4i, A4iii |
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Xuan Thuy |
Vietnam |
A1, A3, A4i, A4iii |
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Xuanmen Wan |
China (mainland) |
A1 |
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Yalu Jiang Estuary |
China (mainland) |
A1, A4i, A4iii |
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Yancheng Nature Reserve |
China (mainland) |
A1, A4i, A4iii |
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Yellow River Delta Nature Reserve |
China (mainland) |
A1, A4i, A4iii |
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Yong Jiang Estuary |
China (mainland) |
A1, A4i |
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Yueqing Wan |
China (mainland) |
A1, A4i, A4iii |
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Name |
Location |
Endemic |
Species |
Website |
Indo-Burma |
Bangladesh, Cambodia, China, India, Laos, Myanmar, Thailand, Viet Nam |
No |
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Japan |
Japan |
No |
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Attributes / relations provided by ♦ 1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. ♦ 2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027 ♦ 3Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303 ♦ 4Shaw Tsen-Hwang. 1936. The birds of Hopei Province. - Zoologia Sinica. Series B. The Vertebrates of China. Vol. 15. Fan Memorial Institute of Biology, Peiping ♦ 5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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