Peter F. D. Boesman
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View article: Speciation in the Karamoja Apalis Apalis karamojae
Speciation in the Karamoja Apalis Apalis karamojae Open
The Karamoja Apalis Apalis karamojae, a threatened species (IUCN Vulnerable), consists of two subspecies, the nominate in Uganda and stronachi in Tanzania plus south-west Kenya, the latter distinguished by being slightly darker with more e…
View article: CLUB ANNOUNCEMENTS
CLUB ANNOUNCEMENTS Open
renowned for his wide-ranging research and publications on raptors, notably British falcons, and Steve Watson, who has been conducting a decades-long field study on the Peregrine Falcon Falco peregrinus in Gloucestershire, jointly presente…
View article: Evidence from citizen science and museum specimens suggests species rank for Erythrogenys [erythrogenys] imberbis (Salvadori, 1889), ‘Red-eyed Scimitar Babbler’
Evidence from citizen science and museum specimens suggests species rank for Erythrogenys [erythrogenys] imberbis (Salvadori, 1889), ‘Red-eyed Scimitar Babbler’ Open
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 Myanm…
View article: Geographical variation in the Bar-tailed Trogon Apaloderma vittatum
Geographical variation in the Bar-tailed Trogon Apaloderma vittatum Open
Distributed in four areas of Africa (‘Eastern’—east of the Gregory Rift Valley from central Kenya south to Malawi; ‘Central’—west of the Gregory Rift from western Kenya and western Uganda south to Burundi and eastern Democratic Republic of…
View article: Cryptic diversity in a neotropical avian species complex untangled by neglected genetic evidence
Cryptic diversity in a neotropical avian species complex untangled by neglected genetic evidence Open
Over the last two decades, vocal and genetic data have been extensively used in avian studies addressing taxonomic and systematic issues. However, even when multiple lines of evidence lean toward lumping or splitting of species, some taxon…
View article: Further vocal evidence for treating the Bahama Nuthatch Sitta (pusilla) insularis as a species
Further vocal evidence for treating the Bahama Nuthatch Sitta (pusilla) insularis as a species Open
The case for recognising Bahama Nuthatch Sitta insularis as a species separate from Brown-headed Nuthatch S. pusilla has been made several times since 2004, based on plumage, morphometrics, voice and genetic distance, but only one of four …
View article: Species rank for Rheinardia ocellata nigrescens (Phasianidae)
Species rank for Rheinardia ocellata nigrescens (Phasianidae) Open
Crested Argus Rheinardia ocellata has two highly disjunct populations in Vietnam and Lao PDR (nominate ocellata) and Malaysia (subspecies nigrescens). When evidence from the small sample of museum specimens is supplemented by novel photogr…
View article: Two undescribed species of bird from West Africa
Two undescribed species of bird from West Africa Open
Taxonomically undifferentiated western and eastern populations of Dusky Long-tailed Cuckoo Cercococcyx mechowi and Yellow-spotted Barbet Buccanodon duchaillui are known to have very different voices. The cuckoo has two song types, a melodi…
View article: Species limits in the African Palm Swift Cypsiurus parvus
Species limits in the African Palm Swift Cypsiurus parvus Open
Mills, Michael S. L., Boesman, Peter, Collar, N. J. (2019): Species limits in the African Palm Swift Cypsiurus parvus. Bulletin of the British Ornithologists' Club 139 (1): 75-82, DOI: 10.25226/bboc.v139i1.2019.a6
View article: 457. Notes on the vocalizations of Kungwe Apalis Apalis argentea
457. Notes on the vocalizations of Kungwe Apalis Apalis argentea Open
In the following text, I briefly analyze and compare the voice of Kungwe Apalis Apalis argentea with the closely related Buff-throated Apalis Apalis rufogularis.I also try to quantify the extent of any vocal differences using the criteria …
View article: Songs of Rusty Tinamou Crypturellus brevirostris and duetting in Crypturellus species
Songs of Rusty Tinamou Crypturellus brevirostris and duetting in Crypturellus species Open
Rusty Tinamou Crypturellus brevirostris is an elusive, ground-dwelling bird of terra firme forest. Although widespread across Amazonian Brazil, the Guiana Shield and extreme south-east Colombia, it is everywhere uncommon. Frequently, only …
View article: Songs of Rusty Tinamou <i>Crypturellus brevirostris</i> and duetting in <i>Crypturellus</i> species
Songs of Rusty Tinamou <i>Crypturellus brevirostris</i> and duetting in <i>Crypturellus</i> species Open
Rusty Tinamou Crypturellus brevirostris is an elusive, ground-dwelling bird of terra firme forest. Although widespread across Amazonian Brazil, the Guiana Shield and extreme south-east Colombia, it is everywhere uncommon. Frequently, only …
View article: Full Issue
Full Issue Open
The ornithology of the Baudin expedition (1800-04) and provided the following summary.The Baudin expedition to Australia and Timor of 1800-04 has largely been overlooked by the ornithological community, due to the effects of the Napoleonic…
View article: 452. Notes on the vocalizations of Monk Parakeet (Myiopsitta monachus) and Cliff Parakeet (Myiopsitta luchsi)
452. Notes on the vocalizations of Monk Parakeet (Myiopsitta monachus) and Cliff Parakeet (Myiopsitta luchsi) Open
In the following text, I briefly analyze and compare the voices of Monk Parakeet (Myiopsitta monachus) and Cliff Parakeet (Myiopsitta luchsi).I also try to quantify the extent of any vocal differences using the criteria proposed by Tobias …
View article: 451. Notes on the vocalizations of Ethiopian Bee-eater (Merops lafresnayii) and Blue-breasted Bee-eater (Merops variegatus)
451. Notes on the vocalizations of Ethiopian Bee-eater (Merops lafresnayii) and Blue-breasted Bee-eater (Merops variegatus) Open
In the following text, I briefly analyze and compare the voices of Ethiopian Bee-eater (Merops lafresnayii) and Blue-breasted Bee-eater (Merops variegatus).I also try to quantify the extent of any vocal differences using the criteria propo…
View article: 450. Notes on the vocalizations of Mottled Owl (Ciccaba virgata)
450. Notes on the vocalizations of Mottled Owl (Ciccaba virgata) Open
In the following text, I briefly analyze and compare the voice of the different races of Mottled Owl (Ciccaba virgata).I also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), as a bas…
View article: 449. Notes on the vocalizations of Least Nighthawk (Chordeiles pusillus)
449. Notes on the vocalizations of Least Nighthawk (Chordeiles pusillus) Open
In the following we briefly analyze and compare voice of the different races of Least Nighthawk (Chordeiles pusillus).We also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), as a sup…
View article: 443. Notes on the vocalizations of Western Hemispingus (Hemispingus ochraceus)
443. Notes on the vocalizations of Western Hemispingus (Hemispingus ochraceus) Open
In the following we briefly analyze and compare voice of Western Hemispingus (Hemispingus ochraceus), Black-eared Hemispingus (H.melanotis) and Piura Hemispingus (H.piurae).We also try to quantify the extent of any vocal differences using …
View article: 441. Notes on the vocalizations of Lemon-rumped Tanager (Ramphocelus icteronotus)
441. Notes on the vocalizations of Lemon-rumped Tanager (Ramphocelus icteronotus) Open
In the following we briefly analyze and compare voice of Lemon-rumped Tanager (Ramphocelus icteronotus) with Flame-rumped Tanager (R. flammigerus).We also try to quantify the extent of any vocal differences using the criteria proposed by T…
View article: 442. Notes on the vocalizations of White-browed Hemispingus (Hemispingus auricularis)
442. Notes on the vocalizations of White-browed Hemispingus (Hemispingus auricularis) Open
In the following we briefly analyze and compare voice of White-browed Hemispingus (Hemispingus auricularis) with Black-capped Hemispingus (H.atropileus).We also try to quantify the extent of any vocal differences using the criteria propose…
View article: 445. Notes on the vocalizations of Dusky Bush-tanager (Chlorospingus semifuscus)
445. Notes on the vocalizations of Dusky Bush-tanager (Chlorospingus semifuscus) Open
In the following we briefly analyze and compare voice of the two races of Dusky Bushtanager (Chlorospingus semifuscus).We also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), as a su…
View article: 440. Notes on the vocalizations of Black-cowled Saltator (Saltator nigriceps)
440. Notes on the vocalizations of Black-cowled Saltator (Saltator nigriceps) Open
In the following we briefly analyze and compare voice of Black-cowled Saltator (Saltator nigriceps) with the different races of Golden-billed Saltator (Saltator aurantiirostris).We also try to quantify the extent of any vocal differences u…
View article: 444. Notes on the vocalizations of Saffron-billed Sparrow (Arremon flavirostris)
444. Notes on the vocalizations of Saffron-billed Sparrow (Arremon flavirostris) Open
In the following we briefly analyze and compare voice of the three races of Saffron-billed Sparrow (Arremon flavirostris).We also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), as a…
View article: 437. Notes on the vocalizations of Yellow-bellied Siskin (Carduelis xanthogastra)
437. Notes on the vocalizations of Yellow-bellied Siskin (Carduelis xanthogastra) Open
In the following we briefly analyze and compare voice of the two races of Yellow-bellied Siskin (Carduelis xanthogastra).We also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), as a …
View article: 436. Notes on the vocalizations of Long-billed Gnatwren (Ramphocaenus melanurus)
436. Notes on the vocalizations of Long-billed Gnatwren (Ramphocaenus melanurus) Open
In the following we briefly analyze and compare voice of the different races of Long-billed Gnatwren (Ramphocaenus melanurus).We also try to quantify the extent of any vocal differences using the criteria proposed by Tobias et al. (2010), …