| | | | | | | | | | | Before 2000, an under-recorded winter visitor, especially to the south coast, with the largest concentration xx. Since the 2010s, an increasingly scarce and irregular migrant and winter visitor, especially to the east coast, with occasional small groups wintering (Dec-Feb) between Pohang and the inner border, Gangwon Province. Along the east coast, recent records appear to peak in November and likely relate to birds moving between Japan and recently identified wintering areas in the DPRK. Occasional records along the west and south coast, during southward (Oct-Nov) and northward (Mar-May) migration periods; now only rarely in mid-winter. Distribution of recordsd suggest two populations likely involved: | |
| | Mongolian Short-toed Lark | | | | | | | | | | |
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| | | | | | | | | | | eBird records into June likely in error for Ochre-rumped. Far less widespread than | |
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| | | | | | | | | | | Park et al (2025) only include arra. Species in much of range winters close to edge of pack ice. Avilist (2025) lists distribution as, "breeds eastern Taymyr Peninsula to New Siberian Islands (Russia)". This is >7,000km over sea from Korean waters and 4,300+ km overland. This compares with what is known of the species, outlined in Gaston et al (2020) in Birds of the world, " Individuals breeding in areas affected by ice shift to ice margin in winter. In Atlantic sector, some populations undertake true migrations of >2,000 km". | |
| | | | | | | | | | | Up to 2025, 6+ records (5 cited in Park et al. 2025) | |
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| | | | | | | | | | | Subspecies added on the basis of Park et al. (2025), "2017년 11월 13일 전남 흑산도 예리에서 아종 알래스카긴발톱멧새 암컷 1개체가
관찰되었다(박창욱 등 2018)". According to AviList (2025), distribution is, "breeds far eastern Siberia, Alaska, and northwestern Canada; winters to western USA" so occurrence in Korea seems plausible (though exceptional) | |
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| | | | | | | | | | | Very local; with >1,000 some years (all years?) in the Han-Imjin Estuary (formerly Odae, more recently Yudo); reduced numbers in the Geum Estuary (20-80); and ~10 in the Lower Nakdong. | |
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| | | | | | | | | | | Included in Park et al (2025)After public review, published images of two birds in Nakdong Estuary appear to be Marsh Sandpiper (https://www.birdskoreablog.org/?p=16251). Annotation in Park et al. (2025) ," 1996년 10월 22일 낙동강 하구(을숙도)에서 1개체가 관찰되었다' indicates that this record has not been reviewed - simply accepted on the basis of publication of three poor images in a Japanese birdwatching magazine,, | |
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| | Chestnut-cheeked Starling | | | | | | | | | | |
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| | | Anarhynchus leschenaultii | | | | | | | | | |
| | | | | | | | | | | Listed as Pending by Park et al. (2025) on the basis of a male seen in December 1996 in Cheonsu Bay by Park Jin-Young (Park 2002). There are no images. The ID challenge posed by presumed Common Pochard x Ferruginous Duck hybrids (cf a male hybrid in Seoul in the 2020s which closely recalls Redhead), were not well understood at this time . Moreover, the species remains extremely rare, with only one record in Japan according to https://kantorilode.weebly.com/annotated-checklist-of-the-birds-of-japan.html; and no records shown in East Asia on eBird. As no further progress can be made with this record, it seems wisest either to place this in Cat 4 or to reject it. | |
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| | White-throated Needletail | | | | | | | | | | |
| | | | | | | | | | | Recent years up to 20 recorded during census. Perhaps formerly regular?; Gore & Won (1971) knew of no recent records; species was considered very rare before 2000; first multiple occurrence (4 birds together) was reported as recently as 1990 (Park 2000). Regular (>10 each year) only from mid-2010s onward, presumably because most were previously missed during migration. | |
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| | | | | | | | | | | Numbers in past 3 winters similar to initial highest counts following strong dip in numbers 2013-2019. In addition, breeding now suspected (Saemangeum) | |
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| | | | | | | | | | | Breeding in 3 areas: Shihwa, Hwaseong and Saemangeum. This indicative of increase as species takes advantage of reclamation areas, yet quite likely previously overlooked | |
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| | | | | | | | | | | Name seems to contradict "rules" of numenclature, as birds in East Asia were also known as "Great Tit" | |
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| | | | | | | | | | | How migratory is this species? According to Birds of the World, "Sedentary; some altitudinal and minor short-distance movements." Only one record in Korea, " 2021년 4월 20일 전남 신안 흑산도에서 수컷 1개체가 관찰되었다(김양모 등 2021)." Only record in Japan is considered possibly to be an esacpe ("1 record Danjo Islands; escapee?": https://kantorilode.weebly.com/annotated-checklist-of-the-birds-of-japan.html) | |
| | | Histrionicus histrionicus | | | | | | | | Was Amber PNS in 2022. Peak in Census was 206 in 2009; 78 was highest peak in past decade. 35% decline in 5-yr geomentric mean between 2009-2013 and 2019 and 2023 (though much of that because of outlier count). Range also withdrawing northward. Census clearly under-reprots species, but optics, site knowledge and observer skill mucch higher now than a decade and especially two decades ago. | |
| | | | | | | | | | | Weak evidence of increasing breeding population in Korea (Kim et al. 2021) set against very large declines of migrant population, therefore from Red to Amber | |
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| | | | | | | | | | | considered to be declining by Kim Hankyu. Really? | |
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| | | | | | | | | | | Confusus is genetically close to nominate, and is considered to be a result of hybridisation of confusus x cristatus. Subspecies still recognised by AviList (2025) although this source explicitly does not review subpecies in detail and "newly" recognised by Park et al. (2025). | |
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| | | | | | | | | | | list as DD. Inclusion, if to be included, is based primarily on confusion with calidus. Korean name is extremely misleading as japonensis is the form found breeding on offshore islands. | |
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