{"title":"Full Issue","authors":"","doi":"10.25226/bboc.v143i1.2023.a11","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a11","url":null,"abstract":"","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135036306","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}
{"title":"The taxonomic history of Black-shouldered Peafowl; with Darwin's help downgraded from species to variation","authors":"Hein van Grouw, W. Dekkers","doi":"10.25226/bboc.v143i1.2023.a7","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a7","url":null,"abstract":"Summary. In the 19th century the black-shouldered variety of Indian Peafowl Pavo cristatus was erroneously viewed by many as a separate species, named P. nigripennis. Others had doubts about its taxonomic status, but Darwin presented firm evidence for it being a variety under domestication, which treatment is now well established and accepted. It being a colour variation rather than a wild species was important for Darwin to prove, as otherwise it could undermine his theory of slow modification by natural selection in the wild. ‘I cannot consider it a domesticated variety, because the differences in both sexes appear to be constant, and to descend to the progeny’ (Sclater 1860: 222). ‘The black-shouldered peacock is a variety, the case is the most remarkable ever recorded of the abrupt appearance of a new form, which so closely resembles a true species that it has deceived one of the most experienced of living ornithologists’ (Darwin 1868: 292).","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"39 1","pages":"111 - 121"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85733130","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}
{"title":"Notes on a recently described subspecies, and the poorly known nominate subspecies of Rüppell's Parrot, Poicephalus rueppellii mariettae and P. r. rueppellii","authors":"J. Hubers, Heinz Schnitker, Hein van Grouw","doi":"10.25226/bboc.v143i1.2023.a4","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a4","url":null,"abstract":"Summary. Rüppell's Parrot Poicephalus rueppellii was until recently considered to be a monotypic species. Birds from parts of north-western and west-central Angola, however, differ significantly in colour and size from the better-known populations across the rest of their range, which fact was overlooked until very recently. Because the name rueppellii was originally applied to the less-known Angolan population, it was the commoner southern population that lacked a taxonomic identity. The latter was described as Poicephalus rueppellii mariettae Hubers & Schnitker, 2022.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"64 1","pages":"66 - 73"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78004609","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}
{"title":"The distribution, specimens and status of Chestnut Owlet Glaucidium (capense) castaneum and Albertine Owlet G. (c.) albertinum","authors":"L. Fishpool","doi":"10.25226/bboc.v143i1.2023.a6","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a6","url":null,"abstract":"Summary. Chestnut Owlet Glaucidium (capense) castaneum and Albertine Owlet G. (c.) albertinum are poorly known members of the African Barred Owlet Glaucidium capense complex, confined to the Albertine Rift of East Africa. Recent taxonomic treatments have seen them variously considered as subspecies of capense, as separate monotypic species or, in the case of castaneum, a polytypic species. A paucity of museum material and field knowledge of each, combined with oversight and misinterpretation of some primary literature, has contributed to this uncertainty. This study reassesses their status and corrects numerous errors, misunderstandings and contradictions concerning specimen material, distribution, morphology and voice. Only four specimens of castaneum are known, there are no documented observations of the bird in life and no acoustic recordings. There are seven specimens of albertinum in collections. No field sightings have ever been documented but several recordings attributed to albertinum exist. Despite its close similarity to the voice of capense, there is no published evidence that albertinum reacts to playback, unlike the remaining taxa of the complex. I conclude that castaneum is a modestly distinct subspecies of capense. In contrast, albertinum, which differs conspicuously from the others in the complex by its disproportionately short tail, and which may be parapatric with castaneum, merits treatment as a species.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"23 1","pages":"85 - 110"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87918123","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}
{"title":"The occurrence and status of black-and-white Puffinus shearwaters on the Kenyan and Tanzanian coasts, with the first specimen records of Persian Shearwater P. persicus persicus","authors":"J. Bradley, Sidney Shema, Jaap Gijsbertsen","doi":"10.25226/bboc.v143i1.2023.a5","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a5","url":null,"abstract":"Summary. We review specimens and sight records of small black-and-white Puffinus shearwaters in Kenya and Tanzania. An early specimen of an Audubon's Shearwater P. lherminieri sensu lato found inland at Limuru, Kenya in October 1963, long held to represent taxon bailloni (now treated as Tropical Shearwater P. bailloni), is reassigned here to P. b. nicolae. We refer three other specimens and two well-documented sight records to Persian Shearwater P. persicus persicus and a third sight record in northern Tanzania to P. persicus. We suggest that nominate persicus is a regular visitor to the central Kenya coast in December–March, probably as far south as the Pangani region of north-east Tanzania at least, concurrent with a seasonal upwelling event on the Kenya Banks associated with the north-east monsoon. Tropical Shearwater, however, is no more than a rare visitor to East African shores based on current evidence. Our data clarify the status of these shearwaters in the region, provide additional biometric data to complement published sources, and extend the western Indian Ocean non-breeding range of the nominate subspecies of Persian Shearwater approximately 2,000 km south from northern Somalia.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"139 1","pages":"74 - 84"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86370286","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}
{"title":"Uncovering the true history of Dulit Partridge Rhizothera dulitensis to re-evaluate its conservation status","authors":"Alex J. Berryman, E. Boakes","doi":"10.25226/bboc.v143i1.2023.a8","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a8","url":null,"abstract":"Summary. Dulit Partridge Rhizothera dulitensis is an enigmatic galliform endemic to the Bornean highlands. Usually, the species is reported as having been collected at four localities (three in Sarawak, one in Sabah) and as recently as the 1930s. However, a review of the evidence (just eight known specimens) finds that it can be confirmed at only three sites, and the whereabouts of one of these has previously been misunderstood. Moreover, the specimens were procured over just eight years, between 1894 and 1902, with recent suggestions of the species' collection in the 1930s probably a misinterpretation of a single source. With more than 120 years since the last record, there is no information on its current population size and trend, such that R. dulitensis is probably best listed as Data Deficient on the IUCN Red List. Surveys of little-explored parts of its presumed range, especially those furthest from habitation, are urgently required.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"7 1","pages":"122 - 131"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75460004","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}
{"title":"The correct authority for the name Spizaetus philippensis, and the status of its type specimens","authors":"R. Prŷs-Jones, Clive A. Slater","doi":"10.25226/bboc.v143i1.2023.a10","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a10","url":null,"abstract":"Summary. From its description in 1863 until the 1920s, the authority for the name Spizaetus philippensis was almost universally agreed to be J. H. Gurney, but from the 1930s it has normally been ascribed to J. Gould. This paper demonstrates that this alteration of the authority was incorrect; it should be J. H. Gurney. The two syntypes of the taxon are currently held by the Natural History Museum at Tring.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"20 1","pages":"136 - 138"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80811523","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}
{"title":"A new genus for Thalurania ridgwayi (Trochilidae)","authors":"G. Sangster, J. Gaudin, K. Schuchmann","doi":"10.25226/bboc.v143i1.2023.a3","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a3","url":null,"abstract":"Summary. Mexican Woodnymph Thalurania ridgwayi was long included in the genus Thalurania. A previously published molecular phylogenetic study found that this species is in fact sister to the genus Eupherusa. We discuss whether ridgwayi is better lumped with Eupherusa or placed in a different genus, and consider that the latter arrangement best reflects the multiple morphological differences between ridgwayi and Eupherusa. Consequently, we describe a new genus for ridgwayi.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"1 1","pages":"63 - 65"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73069322","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}
J. Muñoz, Diego Castelli, S. Jiménez, Martin Abreu
{"title":"New records of Blue Petrel Halobaena caerulea in Uruguay","authors":"J. Muñoz, Diego Castelli, S. Jiménez, Martin Abreu","doi":"10.25226/bboc.v143i1.2023.a9","DOIUrl":"https://doi.org/10.25226/bboc.v143i1.2023.a9","url":null,"abstract":"Summary. We report five new records of Blue Petrel Halobaena caerulea in Uruguay; three individuals were found stranded on the coast in 2005, 2016 and 2018, and two were recorded at sea in the economic exclusive zone in 2021 and 2022. These few records suggest that the species' presence in Uruguayan waters is no more than occasional. However, its similarity to, and association with prions, together with the fact that this petrel does not usually approach fishing vessels, could mean that it is under-recorded.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"60 1","pages":"132 - 135"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78481613","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}
Johan Gatgens-García, Alexander Chaves-Sánchez, L. Sandoval
{"title":"First record of Lesson's Seedeater Sporophila bouvronides in Costa Rica","authors":"Johan Gatgens-García, Alexander Chaves-Sánchez, L. Sandoval","doi":"10.25226/bboc.v142i4.2022.a11","DOIUrl":"https://doi.org/10.25226/bboc.v142i4.2022.a11","url":null,"abstract":"Summary. We report the first record of Lesson's Seedeater Sporophila bouvronides, a South American species, in Costa Rica. It was seen at Tortuguero, in the lowlands of north-east Costa Rica in June 2022. The record is perhaps explained by the passage of a tropical storm that moved north-west from off northern South America.","PeriodicalId":38973,"journal":{"name":"Bulletin of the British Ornithologists'' Club","volume":"37 1","pages":"526 - 528"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79379154","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}