From partial to complete: Wing- and tail-feather moult sequence and intensity depend on species, life-cycle stage, and moult completeness in passerines
2024
Passerines moult during various life-cycle stages. Some of these moults involve the retention of a variable quantity of wing and tail feathers. This prompts the question whether these partial moults...
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Endochondral ossification of hindlimbs in embryonic development of Japanese Quail (Coturnix japonica)
2024
The endochondral ossification of hindlimb is essential to a bird's ability to stand, walk and fly. Most hindlimb is ossified in the embryos before hatching in precocial birds. However, the molecular...
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Seasonal changes in Hermit Thrush (Catharus guttatus) song syntax
2024
In many songbird species, birdsong features phonological syntax, meaning that the units within their vocal sequences are ordered in a non-random way that adheres to a rule. While such syntactical patterns...
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Inbreeding and genetic load in a pair of sibling grouse species: Tetrastes sewersowi and T. bonasia
2024
Genetic load and inbreeding are recognized as important factors to be considered in conservation programs. Elevated levels of both can increase the risk of population extinction by negatively impacting...
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Integrating host biological and ecological variables to predict probability of haemosporidian infection in raptors
2024
Variations in host traits that influence their exposure and susceptibility may impact probability of vector-transmitted diseases. Therefore, identifying the predictors of infection probability is necessary...
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Individual consistency in spatiotemporal characteristics of migratory Whimbrels in the East Asian–Australasian Flyway
2024
Many migratory birds exhibit interannual consistency in migration schedules, routes and stopover sites. Detecting the interannual consistency in spatiotemporal characteristics helps understand the maintenance...
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Population genomic data reveal low genetic diversity, divergence and local adaptation among threatened Reeves's Pheasant (Syrmaticus reevesii)
2024
Population genomic data could provide valuable information for conservation efforts; however, limited studies have been conducted to investigate the genetic status of threatened pheasants. Reeves's...
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Bird species present in urban parks are more colorful than urban avoiders: A test in the Argentinian Pampas
2024
Bird plumage color has been assessed as a possible trait driving the presence of bird species in urban areas. Although some species can see the ultraviolet (UV) spectrum, the mentioned studies did not...
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River width and depth as key factors of diurnal activity energy expenditure allocation for wintering Spot-billed Ducks in the Xin'an River Basin
2024
Rivers are important habitats for wintering waterbirds. However, they are easily influenced by natural and human activities. An important approach for waterbirds to adapt to habitats is adjusting the...
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Bird specimen number linked with species trait and climate niche breadth
2024
Biological specimens are fundamental for taxonomy and flora/fauna research. More importantly, they also play crucial roles in recording environmental impacts on morphology and behavior, which is vital...
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Differential colour-ring loss among Dalmatian Pelican (Pelecanus crispus) colonies and its consequence on survival estimates
2024
The analysis of bird ringing data often comes with some potential sources of error and bias, as ring wear and/or loss could affect mark-recapture analyses and produce erroneous estimates of survival....
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Weather influenced nestling growth of an insectivorous but not a granivorous grassland passerine in Argentina
2024
Nestling growth of birds can be affected by weather fluctuations. In general, it is expected that higher temperatures favor growth by improving food availability and nestling metabolism, while rain...
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Use of evergreen and deciduous plants by nocturnal-roosting birds: A case study in Beijing
2024
With continually increasing urbanization, the land cover in urban areas continues to change, resulting in the loss of biodiversity. Birds are highly sensitive to changes in habitat. Most forest birds...
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Nest decoration: Black feathers prevent Crested Mynas from nest usurpation
2024
Nests are important structures for birds to raise their offspring and for signaling. Many birds incorporate feathers into the nest, since feathers were traditionally thought to serve the function of...
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Oriental Reed Warblers do not abandon Common Cuckoo chicks during prolonged nestling periods
2024
The Oriental Reed Warbler (Acrocephalus orientalis) is one of the most commonly used hosts for the parasitic Common Cuckoo (Cuculus canorus). However, as hosts that feed unrelated parasitic nestlings...
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Tri-axial accelerometry allows to determine parental food provisioning behaviour in a marine bird
2024
The study of parental food provisioning is essential for understanding the breeding ecology of birds. We conducted the first study using accelerometry to detect food provisioning in birds, using Support...
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Incubation temperature induced developmental plasticity of cold responsive physiological phenotypes in Japanese Quails
2024
Embryonic development is a critical period for phenotype formation. Environmental variation during embryonic development can induce changes in postnatal phenotypes of animals. The thyroxine secretion...
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Migration pattern of a population of Barn Swallows (Hirundo rustica) breeding in East Asian tropical region
2024
Birds exhibit a high degree of migratory diversity, which is influenced by various ecological factors and life history strategies. Conducting studies on tropical bird migration, of which research is...
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Common Cuckoo (Cuculus canorus) nestlings adapt their begging behavior to the host signal system
2024
Common Cuckoos (Cuculus canorus) dependent on parental care for post-hatching demonstrate an intriguing ability to modify their begging vocalizations to ensure maximum care and resources from their...
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Vocal repertoire of Azure-winged Magpies (Cyanopica cyanus): A context-associated communication system
2023
Signals within animals’ vocal communication are considered functional referential and context-specific. Even in the absence of the context, receivers are expected to acquire the information of calls...
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Using non-destructive sampling to evaluate the population genomic status of captive Brown Eared Pheasants
2023
Evaluating the genetic status of threatened species is an essential task in conservation genetics. However, the genetic status of threatened species has been mostly evaluated through techniques that...
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Avian malaria, haematocrit, and body condition in invasive wetland passerines settled in southwestern Spain
2023
Avian malaria and related haemosporidian parasites can negatively impact fitness in many songbirds. Research on the malaria infection and its physiological costs on their avian hosts is heavily skewed...
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A high level of extra-pair paternity in the Chestnut Thrush (Turdus rubrocanus)
2023
Extra-pair copulation (EPC) can potentially maximize individual reproductive fitness, and this process may involve sexual selection of male and female traits that reflect individual quality. Previous...
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Altitudinal migration behavior patterns of birds on the eastern slope of Mt. Gongga, China
2023
Many bird species in montane regions exhibit altitudinal migration behavior; however, altitudinal migration of birds is still understudied, especially in Asia. Mt. Gongga (7556 m) is the highest peak...
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Data reliability of the emerging citizen science in the Greater Bay Area of China
2023
The potential of citizen science projects in research has been increasingly acknowledged, but the substantial engagement of these projects is restricted by the quality of citizen science data. Based...
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