Dr Nial Moores, Birds Korea, June twenty fifth 2025
Since 2009, Birds Korea, with just a few annotated exceptions, has been following the taxonomic and nomenclature suggestions made for the Worldwide Ornithologists’ Union (previously generally known as the IOC) in our publications and checklists. In more moderen years, a number of of us have additionally change into energetic eBirders (each as reviewers and as customers), and have labored on Merlin.
As such, Birds Korea will now comply with the AviList, the world’s first guidelines to unify the opinions of the IOC with eBird and several other different fowl organisations.
As introduced on numerous English-language platforms on June eleventh:
“AviList is a brand-new, full world guidelines of species and taxonomy. Containing 11,131 species, 19,879 subspecies, 2,376 genera, 252 households and 46 orders, it brings collectively the newest world considering on what constitutes a species and shakes up our understanding of the avian world.
Till now, ornithologists, conservationists and birders have used a number of world checklists, every with its personal reasoning on what constitutes a particular species of fowl. AviList’s unified view has been developed by the Working Group on Avian Checklists, containing representatives from BirdLife Worldwide, the Cornell Lab of Ornithology, the American Ornithological Society, the Worldwide Ornithologists’ Union IOU) and Avibase. The brand new guidelines will substitute the Worldwide Ornithological Neighborhood and Clements lists, and can be up to date yearly” (BirdLife Worldwide, June eleventh 2025).
This mammoth mission is anticipated, not less than within the mid- to long-term, to learn fowl conservation in addition to birders, as a result of as famous by Marshall Iliff (identified to many birders in Korea due to his function in eBird and his time at Ulsan), “In attempting to guard birds at a world scale, it is very important make sure that everyone seems to be speaking the identical language and the information match… legal guidelines and treaties used to guard species don’t work as effectively when there isn’t consensus on species names” (Cornell Lab, June eleventh 2025).
As a consultant of a Korean conservation NGO, I agree fully with this sentiment. One instance ought to suffice: “Bean Goose” is known to comprise two species by the IOC and within the 2025 AviList (and subsequently additionally in Birds Korea Checklists), Tundra Bean Goose Anser serrirostris 큰기러기 and Taiga Bean Goose Anser fabalis 큰부리큰기러기. Nonetheless, “Bean Goose” is listed as a single species inside the ROK by e.g., the Ministry of Surroundings, and likewise by Wetlands Worldwide of their Waterbirds Inhabitants Estimates, and till now additionally by BirdLife Worldwide, who assessed “Bean Goose” as Least Concern. Within the ROK, because of this Winter Census information can’t be used to enhance our understanding of the completely different nationwide inhabitants tendencies of the 2 species, as they don’t seem to be listed individually. As well as, due to the latest fast enhance within the variety of Tundra Bean Goose right here in Korea throughout migration it appears potential that the “Bean Goose” may quickly lose its nationwide evaluation as “Threatened”. Nonetheless, at the exact same time that the Tundra Bean Goose is rising in quantity, the Jap Taiga Bean Goose Anser (fabalis) middendorffii 큰부리큰기러기 is fast-declining of their Russian breeding grounds (Degtyarev 2024), and seems to be declining within the southeast of the nation.
Trying forward, the pooling of experience and sources in help of the AviList ought to fortunately additionally begin to scale back what has more and more felt moderately chaotic for these attempting to maintain up, “with three main world checklists independently assessing taxonomic revisions from one to 4 instances a 12 months“.
The method of unifying checklists whereas enhancing the scientific base must proceed, in fact, as researchers and birders make new discoveries. As proposed, the AviList crew will subsequently attempt to develop regional groups of consultants, will begin to look extra intently at subspecies and can publish updates yearly. And identical to the IOC Guidelines managers, who’ve accomplished a really excellent job over the previous decade and extra (our honest because of them), the AviList crew states that they are going to keep open to knowledgeable enter. This, we hope, will embrace utilizing eBird data to refine a few of the distribution notes supplied of their full model excel sheet (one instance: the distribution of Japanese Wagtail Motacilla grandis 검은등할미새, a widespread breeding species in Korea, is given in error as, “breeds Japanese Islands; winters to China, Korea, and Taiwan”).
Within the here-and-now, although, how will the 2025 Avilist guidelines have an effect on eBirders in Korea and people utilizing Birds Korea Checklists?
First, the order by which species are listed can be completely different. Revision for the 2025 Birds Korea Guidelines, to make it suitable with AviList, required not less than 155 adjustments from the sequence used within the 2024 record. A few of these adjustments can be apparent, with e.g., the Cotton Pygmy Goose 쇠솜털오리 now proper on the high of the record, as an alternative of listed twenty second towards the center of the Anatidae; and the Larger Flamingo 큰홍학, has been moved up – to take a seat (or stand tall!) between Japanese Quail 메추라기 and Little Grebe 논병아리. Different such adjustments is perhaps moderately much less apparent, however will possible “really feel” odd. Most exceptional maybe is the near-complete rearrangement of the buntings – with Yellow-throated Bunting 노랑턱멧새 now listed first, oddly adopted subsequent by the strikingly completely different Ochre-rumped Bunting 쇠검은머리쑥새.
Second, two species within the earlier Birds Korea Checklists and on eBird are demoted to subspecies. Arctic Redpoll 쇠홍방울새 has been subsumed into the all-encompassing Redpoll 홍방울새 (a change made lower than a 12 months in the past by eBird); and, Eurasian Teal Anas crecca 쇠오리 and Inexperienced-winged Teal Anas carolinensis 미국쇠오리, solely present in Korea as an thrilling vagrant, have now been lumped collectively confusingly below the identify of Inexperienced-winged Teal Anas crecca (쇠오리). To scale back this confusion, the following Birds Korea Guidelines will possible use the identify Frequent Teal as an alternative, with the present Korean names nonetheless utilized to the 2 subspecies.
Third, (please take particular word all eBird customers!), though the adjustments will in fact not have an effect on Korean names, a few species will successfully disappear and reappear with very completely different English and scientific names. Striated Heron Butorides striata (검은댕기해오라기) is now listed by AviList 2025 as Little Heron Butorides atricapilla; and the one breeding stonechat 검은딱새 (variously identified in English as Stejneger’s Stonechat after which as Amur Stonechat) reverts again to being the stejnegeri subspecies of Siberian Stonechat Saxicola maurus…These adjustments comply with on from splits that had been already recognised by the IOC, and had been included in earlier Birds Korea Checklists, such because the break up of Lesser Sand Plover Charadrius mongolus 왕눈물떼새 (extra just lately generally known as Mongolian Plover) into Tibetan Sand Plover Anarhynchus atrifrons (just one document identified to us in Korea) and Siberian Sand Plover Anarhynchus mongolus, with the at present very unconvincing and fairly deceptive Korean names of 왕눈물떼새 and 몽골왕눈물떼새 respectively. Suggestions for higher Korean names are urgently wanted please!
Fourth, whereas Mongolian Gull Larus mongolicus 한국재갈매기 is formally recognised as a full species (lastly!), Taimyr Gull 줄무늬노랑발갈매기 nonetheless stays out within the taxonomic wilderness. In response to the 2025 AviList distribution word, all data of taimyrensis consult with the heuglini subspecies of Lesser Black-backed Gull 검은등갈매기 (one other unsatisfactory Korean language identify) which, “breeds tundra from Kola Peninsula (northwestern Russia) to Yamal Peninsula (north-central Siberia); winters from Center East southward to east Africa and eastward to India, jap China, and South Korea”. Going ahead, presumably eBirders will now need to enter all taimyrensis below Larus fuscus heuglini. Find out how to reconcile this with latest monitoring of (nominate) Heuglin’s Gull from the breeding grounds to East Africa (as anticipated) and the acute rarity of claims within the Yellow Sea of nominate heuglini however the presence of flocks of taimyrensis?
Fifth and at last, though a few our most well-liked English names have been adopted (e.g., Black Wooden Pigeon and Black Paradise Flycatcher) – because of the enter of Marshall Iliff following our post- lots of the identical moderately deceptive names stay, resembling Japanese Thrush as an alternative of our most well-liked Gray Thrush. As earlier than, in such circumstances Birds Korea will proceed to make use of our most well-liked names in our guidelines, with some annotation or highlighting to point out their distinction from AviList.
For many who use the Birds Korea guidelines: if time might be discovered, we are going to publish an up to date, easy AviList-based 2025 Birds Korea Guidelines this summer season and a extra totally annotated record this winter – on what we hope can be a brand new Birds Korea web site. Our Guidelines at present treats about 617 species, with not less than 573 to be listed in Class One, as thought-about to be adequately documented and totally naturally occurring within the ROK since 2000. The newest additions comprise Little Gull Hydrocoloeus minutus 꼬마갈매기 on the premise of 1 in Gangneung in December 2023; Purple-tailed Shrike Lanius phoenicuroides (Gimpo, Gyeonggi Province, December 2024 – March 2025); and presumably Pied Bushchat Saxicola caprata (Gureupdo, Incheon, April 2025).
The nationwide first document of the presumed ship-assisted Nice-tailed Grackle (Busan, October 2024? to?) can be listed in Class 5, whereas the Inexperienced-backed Tit Parus monticolus on Shinjindo, Taean County on April sixteenth 2025 whereas clearly recognized accurately, raises a few of the identical questions because the Oriental Magpie-Robin Copsychus saularis 까치울새 on Eocheong a few years in the past. Gosler et al. (2024) in Birds of the World describe Inexperienced-backed Tit as “Largely resident or short-distance altitudinal migrant”, wintering in Sichuan from 100 as much as 3050 masl; and the closest data proven on eBird are in Shanxi and Henan, greater than 1,200 km from Korea – with most of that distance comprising close to treeless flat plains and open sea.
Are more-or-less sedentary species like this actually in a position to cross the Yellow Sea below their very own energy? And if not, what are their origins? Find out how to deal with such data if a sample of out of vary data of such species begins to emerge? Clearly, a nationwide committee prepared to speak regionally is more and more wanted to determine upon data like this – a course of that the AviList may assist help, in the identical means that eBird does now. For instance, within the case of the close to sedentary Oriental Magpie-Robin (at present listed in Class 5), we realized this 12 months from Qingdao-based birder Xuky (徐克阳 ) {that a} pair raised two younger there in 2024, and that there are different data on the Shandong Peninsula (in lit. January 2025). Even eBird now reveals a document from Japan. Are these naturally-occurring off-course migrants? Or had been they ship-assisted someway (maybe as escapees from passing boats)? Or may they maybe originate from advantage releases performed far out of their pure vary ?
Already, we all know that species earlier thought to not bear lengthy migrations like Mild-vented Bulbul 검은이마직박구리 and Yellow-bellied Tit 노랑배진박새, do cross the Yellow Sea commonly, and each are clearly increasing their ranges quickly to the north and east. Maybe further (beforehand) near-sedentary species from southern and central China like Oriental Magpie-Robin and Inexperienced-backed Tit will even be discovered to be shifting their ranges north and east in response to more and more extreme local weather breakdown…Solely time, and sharing of data, will inform.
For extra on AviList, please see right here.
References
Degtyarev, V. G. 2024. Distribution, tendencies and threats to Jap Taiga Bean Goose Anser fabalis middendorffii within the River Lena basin, East Siberia. Wildfowl 74: 23–39.
Gosler, A., P. Clement, P. Pyle, and G. M. Kirwan (2024). Inexperienced-backed Tit (Parus monticolus), model 1.1. In Birds of the World (B. Okay. Keeney, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.grbtit1.01.1
