Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a4
Víctor Raimilla, Fernando Díaz, Rodrigo Barros, H. Norambuena, Gabriela Contreras, Sebastián Carrasco, Daniel Torres, Erik M. Sandvig
Summary. Fuegian Snipe Gallinago stricklandii is a poorly known wader found in southern Chile and south-west Argentina, but knowledge of its distribution is still incomplete. Historical records suggest a breeding range between 48°S and 56°S in the Patagonian fjords, however especially few data are available for the north of its presumed distribution. Here we report two records of Fuegian Snipe during the breeding season at 46°S and 48°S. We captured two individuals at Ventisquero Jorge Montt (48°19'S) in early December 2021 (late spring), both with a dry and shrivelled incubation patch, usually indicative of a recently completed incubation period. We also report a photo record and displays at the río Exploradores (46°19'S, 73°24'W). These findings suggest that the northern limit of the species' breeding range extends to at least 46°S.
{"title":"What is the northernmost breeding range of Fuegian Snipe Gallinago stricklandii?","authors":"Víctor Raimilla, Fernando Díaz, Rodrigo Barros, H. Norambuena, Gabriela Contreras, Sebastián Carrasco, Daniel Torres, Erik M. Sandvig","doi":"10.25226/bboc.v143i3.2023.a4","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a4","url":null,"abstract":"Summary. Fuegian Snipe Gallinago stricklandii is a poorly known wader found in southern Chile and south-west Argentina, but knowledge of its distribution is still incomplete. Historical records suggest a breeding range between 48°S and 56°S in the Patagonian fjords, however especially few data are available for the north of its presumed distribution. Here we report two records of Fuegian Snipe during the breeding season at 46°S and 48°S. We captured two individuals at Ventisquero Jorge Montt (48°19'S) in early December 2021 (late spring), both with a dry and shrivelled incubation patch, usually indicative of a recently completed incubation period. We also report a photo record and displays at the río Exploradores (46°19'S, 73°24'W). These findings suggest that the northern limit of the species' breeding range extends to at least 46°S.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76904019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a13
Miguel Montenegro-Avila, Nicole A. Avalos, G. A. Parada, Romer S. Miserendino Salazar
Summary. We report two new species for Bolivia: Biscutate Swift Streptoprocne biscutata and Buckley's Forest Falcon Micrastur buckleyi, which brings the total number of birds known in Bolivia to 1,449. Additionally, we documented the first individuals of the ‘caraguata’ morph of Dark-throated Seedeater Sporophila ruficollis, indicating that it spends its non-breeding season in Bolivia, alongside typical S. ruficollis.
总结。我们报告了玻利维亚的两个新种:Biscutate Swift Streptoprocne biscutata和Buckley's Forest Falcon Micrastur buckkleyi，这使得玻利维亚已知的鸟类总数达到1449种。此外，我们记录了第一批黑喉种子孢子虫(Sporophila ruficollis)的“caraguata”变种个体，表明它与典型的ruficollis一起在玻利维亚度过非繁殖期。
{"title":"Two new bird species for Bolivia","authors":"Miguel Montenegro-Avila, Nicole A. Avalos, G. A. Parada, Romer S. Miserendino Salazar","doi":"10.25226/bboc.v143i3.2023.a13","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a13","url":null,"abstract":"Summary. We report two new species for Bolivia: Biscutate Swift Streptoprocne biscutata and Buckley's Forest Falcon Micrastur buckleyi, which brings the total number of birds known in Bolivia to 1,449. Additionally, we documented the first individuals of the ‘caraguata’ morph of Dark-throated Seedeater Sporophila ruficollis, indicating that it spends its non-breeding season in Bolivia, alongside typical S. ruficollis.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78183189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a14
Alex J. Berryman, Peter Boesman, N. J. Collar
Summary. Rusty-cheeked Scimitar Babbler Erythrogenys erythrogenys (Vigors, 1832) comprises two subspecies in the Himalaya (nominate and ferrugilata) and two more, disjunctly (with Spot-breasted Scimitar Babbler E. mcclellandi interposing), in Myanmar and Thailand (imberbis and celata). Prompted by the observation that these two populations appear to exhibit differences in eye colour, we use citizen science data (343 online photographs and >100 sound-recordings) and 66 museum specimens to evaluate potential differences in bare-part and plumage colour, morphometrics and vocalisations. We find that Thai-Burmese birds are distinguished from their Himalayan counterparts by their red vs. white irides, dark vs. pale bills, browner ear-coverts, typically grey vs. whitish lores and the absence of a white submoustachial spot. They also less frequently have white flecks on the eye-rim and are, on average, less heavily streaked on the breast. Thai-Burmese birds are further characterised by their smaller size with significantly shorter wings and tail, and divergent voice of females in duet (a mellow peew and burry prreew vs. a staccato pip!). Cumulatively these multiple differences, fully consistent in iris colour, size and female voice, and highly indicative in other features, point to a more appropriate treatment of the Thai-Burmese birds as a species, Red-eyed Scimitar Babbler Erythrogenys imberbis (Salvadori, 1889).
{"title":"Evidence from citizen science and museum specimens suggests species rank for Erythrogenys [erythrogenys] imberbis (Salvadori, 1889), ‘Red-eyed Scimitar Babbler’","authors":"Alex J. Berryman, Peter Boesman, N. J. Collar","doi":"10.25226/bboc.v143i3.2023.a14","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a14","url":null,"abstract":"Summary. Rusty-cheeked Scimitar Babbler Erythrogenys erythrogenys (Vigors, 1832) comprises two subspecies in the Himalaya (nominate and ferrugilata) and two more, disjunctly (with Spot-breasted Scimitar Babbler E. mcclellandi interposing), in Myanmar and Thailand (imberbis and celata). Prompted by the observation that these two populations appear to exhibit differences in eye colour, we use citizen science data (343 online photographs and >100 sound-recordings) and 66 museum specimens to evaluate potential differences in bare-part and plumage colour, morphometrics and vocalisations. We find that Thai-Burmese birds are distinguished from their Himalayan counterparts by their red vs. white irides, dark vs. pale bills, browner ear-coverts, typically grey vs. whitish lores and the absence of a white submoustachial spot. They also less frequently have white flecks on the eye-rim and are, on average, less heavily streaked on the breast. Thai-Burmese birds are further characterised by their smaller size with significantly shorter wings and tail, and divergent voice of females in duet (a mellow peew and burry prreew vs. a staccato pip!). Cumulatively these multiple differences, fully consistent in iris colour, size and female voice, and highly indicative in other features, point to a more appropriate treatment of the Thai-Burmese birds as a species, Red-eyed Scimitar Babbler Erythrogenys imberbis (Salvadori, 1889).","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78841195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a7
Leo Joseph
Summary. A trend to treat Queensland populations of Helmeted Friarbird Philemon buceroides (Swainson, 1838) sensu lato of Indonesia, Australia and Papua New Guinea as Hornbill Friarbird P. yorki Mathews, 1912, while consistent with >100 years of scientific name usage before 1975, and not without merit, has been poorly defended. Given the region's biogeography, rigorous assessment is needed of which of several taxa described from New Guinea and often treated as subspecies of P. novaeguineae (S. Müller, 1843) might be most closely related to yorki. This will be critical in establishing nomenclatural priority. Introduction of ‘Hornbill Friarbird’ evidently overlooks ‘Helmeted Friarbird’ having been associated almost exclusively with Queensland populations for >100 years. Clarifying relationships within and among Australian populations to each other and to those in Indonesia and Papua New Guinea will be a key starting point in eliminating legitimate, lingering dissatisfaction with the broader group’s taxonomy and nomenclature.
总结。将昆士兰的盔盔Friarbird Philemon buceroides (Swainson, 1838)和印度尼西亚、澳大利亚和巴布亚新几内亚的lato视为犀鸟(Hornbill Friarbird P. yorki Mathews, 1912)的一种趋势，尽管与1975年之前超过100年的学名使用一致，而且并非没有价值，但却没有得到很好的辩护。考虑到该地区的生物地理条件，有必要对新几内亚被描述为P. novaeguineae (S. m ller, 1843)亚种的几种分类群中哪一种可能与yorki最接近进行严格的评估。这对于确定命名优先级至关重要。“犀鸟”的引入显然忽视了“盔鸟”在昆士兰州的种群中已经存在了100多年。澄清澳大利亚种群内部和种群之间的关系，以及与印度尼西亚和巴布亚新几内亚种群之间的关系，将是消除对更广泛群体的分类和命名法的合理的、挥之不去的不满的关键起点。
{"title":"Towards a resolution of nomenclatural instability in the Helmeted Friarbird Philemon buceroides complex","authors":"Leo Joseph","doi":"10.25226/bboc.v143i3.2023.a7","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a7","url":null,"abstract":"Summary. A trend to treat Queensland populations of Helmeted Friarbird Philemon buceroides (Swainson, 1838) sensu lato of Indonesia, Australia and Papua New Guinea as Hornbill Friarbird P. yorki Mathews, 1912, while consistent with >100 years of scientific name usage before 1975, and not without merit, has been poorly defended. Given the region's biogeography, rigorous assessment is needed of which of several taxa described from New Guinea and often treated as subspecies of P. novaeguineae (S. Müller, 1843) might be most closely related to yorki. This will be critical in establishing nomenclatural priority. Introduction of ‘Hornbill Friarbird’ evidently overlooks ‘Helmeted Friarbird’ having been associated almost exclusively with Queensland populations for >100 years. Clarifying relationships within and among Australian populations to each other and to those in Indonesia and Papua New Guinea will be a key starting point in eliminating legitimate, lingering dissatisfaction with the broader group’s taxonomy and nomenclature.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79828285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a8
Alexander L. Bond, Douglas G. D. Russell
Summary. Tristan Moorhen Gallinula nesiotis is a rail from Tristan da Cunha in the South Atlantic Ocean that probably went extinct around 1874. Here, we describe the only known egg of the species, its history, and confusion surrounding its attribution. It was probably collected by (or given to) Revd. W. F. Taylor sometime between 1851 and 1856, shipped aboard HMS Frolic in 1856, and presented as a gift to Lady Eliza Lucy Grey, wife of Cape Colony Governor Sir George Grey.
总结。Tristan Moorhen Gallinula nesiotis是一种来自南大西洋特里斯坦达库尼亚岛的铁路，可能在1874年左右灭绝。在这里，我们描述了该物种唯一已知的蛋，它的历史，以及围绕它的归属的困惑。它可能是由rev .收集(或送给)的。W. F. Taylor在1851年至1856年之间的某个时候，于1856年被运往HMS Frolic，并作为礼物送给开普殖民地总督乔治·格雷爵士的妻子伊丽莎·露西·格雷夫人。
{"title":"The provenance of the only known egg of the extinct Tristan Moorhen Gallinula nesiotis","authors":"Alexander L. Bond, Douglas G. D. Russell","doi":"10.25226/bboc.v143i3.2023.a8","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a8","url":null,"abstract":"Summary. Tristan Moorhen Gallinula nesiotis is a rail from Tristan da Cunha in the South Atlantic Ocean that probably went extinct around 1874. Here, we describe the only known egg of the species, its history, and confusion surrounding its attribution. It was probably collected by (or given to) Revd. W. F. Taylor sometime between 1851 and 1856, shipped aboard HMS Frolic in 1856, and presented as a gift to Lady Eliza Lucy Grey, wife of Cape Colony Governor Sir George Grey.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88765908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-07DOI: 10.25226/bboc.v143i3.2023.a10
Frederick Pallinger, Joacil Germano Soares, Fabio Schunck
Summary. Eurasian Hobby Falco subbuteo migrates between its breeding grounds in Europe, parts of North Africa and East and South Asia, and non-breeding areas in Africa and Asia. It is a vagrant to many parts of the world, including North America and Australasia. A first-calendar-year individual was photographed aboard a boat near the São Pedro e São Paulo archipelago, off north-east Brazil, in December 2022, providing the first record of this species for South America.
总结。欧亚隼在欧洲繁殖地、北非部分地区、东亚和南亚以及非洲和亚洲的非繁殖地之间迁徙。它是世界上许多地方的流浪者，包括北美和澳大拉西亚。2022年12月，在巴西东北部的 o Pedro e sere o Paulo群岛附近的一艘船上，人们拍摄到了一只首个日历年的个体，这是该物种在南美洲的第一个记录。
{"title":"First record of Eurasian Hobby Falco subbuteo in South America","authors":"Frederick Pallinger, Joacil Germano Soares, Fabio Schunck","doi":"10.25226/bboc.v143i3.2023.a10","DOIUrl":"https://doi.org/10.25226/bboc.v143i3.2023.a10","url":null,"abstract":"Summary. Eurasian Hobby Falco subbuteo migrates between its breeding grounds in Europe, parts of North Africa and East and South Asia, and non-breeding areas in Africa and Asia. It is a vagrant to many parts of the world, including North America and Australasia. A first-calendar-year individual was photographed aboard a boat near the São Pedro e São Paulo archipelago, off north-east Brazil, in December 2022, providing the first record of this species for South America.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82119222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-07DOI: 10.25226/bboc.v143i2.2023.a5
Matthew R. Halley
Summary. I reviewed the material basis of Muscicapa virens Linnaeus, 1766, long presumed to be the original description of Eastern Wood Pewee Contopus virens (Linnaeus), type species of the genus Contopus Cabanis, 1855, and found it to be an unidentifiable taxonomic composite. Linnaeus' (1766) account was partly based on Brisson's (1760) ‘Gobe-mouche Cendré de la Caroline’, which was based on (1) a non-extant specimen that, as demonstrated herein, was probably a species in the genus Empidonax Cabanis, 1855, and (2) Catesby’s (1731) ‘little brown Fly-catcher’, which was also a taxonomic composite. Linnaeus (1766) also included a novel character in his original description of M. virens—a white supercilium (‘superciliis albis’)—which is lacking in Eastern Wood Pewee, and was probably miscopied from Catesby’s (1731) description of ‘Red-eyed Fly-catcher’ (= Red-eyed Vireo Vireo olivaceus Linnaeus, 1766), which appeared on the same plate as the ‘little brown Fly-catcher’. In light of these ambiguities, after a thorough review of literature and relevant primary sources, I designate a neotype specimen for C. virens (Linnaeus) that stabilises nomenclature in accordance with prevailing use.
{"title":"The composite identity of Muscicapa virens Linnaeus, and a neotype designation for Eastern Wood Pewee Contopus virens (Tyrannidae)","authors":"Matthew R. Halley","doi":"10.25226/bboc.v143i2.2023.a5","DOIUrl":"https://doi.org/10.25226/bboc.v143i2.2023.a5","url":null,"abstract":"Summary. I reviewed the material basis of Muscicapa virens Linnaeus, 1766, long presumed to be the original description of Eastern Wood Pewee Contopus virens (Linnaeus), type species of the genus Contopus Cabanis, 1855, and found it to be an unidentifiable taxonomic composite. Linnaeus' (1766) account was partly based on Brisson's (1760) ‘Gobe-mouche Cendré de la Caroline’, which was based on (1) a non-extant specimen that, as demonstrated herein, was probably a species in the genus Empidonax Cabanis, 1855, and (2) Catesby’s (1731) ‘little brown Fly-catcher’, which was also a taxonomic composite. Linnaeus (1766) also included a novel character in his original description of M. virens—a white supercilium (‘superciliis albis’)—which is lacking in Eastern Wood Pewee, and was probably miscopied from Catesby’s (1731) description of ‘Red-eyed Fly-catcher’ (= Red-eyed Vireo Vireo olivaceus Linnaeus, 1766), which appeared on the same plate as the ‘little brown Fly-catcher’. In light of these ambiguities, after a thorough review of literature and relevant primary sources, I designate a neotype specimen for C. virens (Linnaeus) that stabilises nomenclature in accordance with prevailing use.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81586041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-07DOI: 10.25226/bboc.v143i2.2023.a10
J. Tobias
Summary. An adult thrush trapped in a mist-net near Guayaramerin, dpto. Beni, Bolivia, in April 2005, was initially identified as Black-billed Thrush Turdus ignobilis although several subtle plumage features appeared to differ from the expected race T. i. debilis. These features match those of Campina Thrush T. arthuri, a cryptic species subsequently split from Black-billed Thrush based on molecular evidence, and now known to occur widely in shrubby thickets and stunted campina forest across much of Amazonia. This record extends the known distribution of T. arthuri south-west from the nearest known localities in Amazonas and Rondônia, Brazil. T. arthuri is presumably resident in north-west dpto. Beni in suitable habitat, and potentially occurs elsewhere in Bolivia from Pando to eastern Santa Cruz in similar campina-like habitats associated with weathered outcrops of the Brazilian Shield.
总结。在瓜亚拉马林附近，一只成年画眉被困在雾网里。2005年4月，玻利维亚的贝尼，最初被确定为黑嘴画眉Turdus ignobilis，尽管一些微妙的羽毛特征似乎与预期的T. i. debisis不同。这些特征与camina Thrush T. arthuri的特征相匹配，camina Thrush T. arthuri是一种神秘的物种，后来根据分子证据从黑嘴鸫中分离出来，现在已知它广泛存在于亚马逊大部分地区的灌木灌木丛和发育不良的Campina forest中。这一记录将已知的T. arthuri分布范围从亚马逊河流域和巴西Rondônia最近的已知地区向西南扩展。据推测，T. arthuri居住在dpto西北部。贝尼在合适的栖息地，并可能发生在玻利维亚的其他地方，从潘多到圣克鲁斯东部，在与巴西盾风化露头有关的类似坎皮纳的栖息地。
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Pub Date : 2023-06-07DOI: 10.25226/bboc.v143i2.2023.a9
R. Prŷs-Jones, Judith White
Summary. The name Struthio australis Gurney Sr, 1868, was based on three captive birds that arrived at the Zoological Society of London in November 1861. A skeleton of one of these is shown to survive in the bird collection of the Natural History Museum, but whether the other two syntypes still exist is doubtful.
{"title":"On the name Struthio australis Gurney Sr, 1868, and its type specimens","authors":"R. Prŷs-Jones, Judith White","doi":"10.25226/bboc.v143i2.2023.a9","DOIUrl":"https://doi.org/10.25226/bboc.v143i2.2023.a9","url":null,"abstract":"Summary. The name Struthio australis Gurney Sr, 1868, was based on three captive birds that arrived at the Zoological Society of London in November 1861. A skeleton of one of these is shown to survive in the bird collection of the Natural History Museum, but whether the other two syntypes still exist is doubtful.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81179473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-07DOI: 10.25226/bboc.v143i2.2023.a11
P. Round, Pattarapon Promnun, A. J. Pierce, Wangworn Sankamethawee, D. Allen, J. Fuchs, Ngwe Lwin, Mongkol Safoowong
Summary. A total of 20 individual Phylloscopus warblers in the ‘Blyth’s Leaf Warbler P. reguloides lineage’, caught for ringing in the non-breeding season in Thailand and Myanmar, were resolved via mtDNA assay as P. reguloides (seven individuals), Claudia’s Leaf Warbler P. claudiae (12) and Hartert’s Leaf Warbler P. goodsoni (one). As expected, P. claudiae proved to be the most widely distributed. The occurrence of four P. claudiae on an island in the Thai Gulf, alongside large numbers of typically Sundaic wintering species on northbound migration during late March–early April, indicates that its non-breeding season range probably extends further south than previously recognised, into that subregion.
总结。在泰国和缅甸的非繁殖季节，共有20只叶莺在“Blyth’s Leaf Warbler P. reguloides谱系”中被捕获，通过mtDNA分析，鉴定为P. reguloides(7只)，Claudia’s Leaf Warbler P. claudiae(12只)和Hartert’s Leaf Warbler P. goodsoni(1只)。不出所料，克劳狄疟原虫的分布最为广泛。在泰国湾的一个岛屿上发现了4只克劳迪亚虫，同时在3月底至4月初期间，还有大量典型的圣代越冬物种向北迁徙，这表明它的非繁殖季节范围可能比之前认识到的更向南延伸到那个分区域。
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