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Food monotony compromises photoperiod induced responses in migratory redheaded bunting Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-15 Anupama Yadav, Shalie Malik, Sangeeta Rani
Food is one of the key environmental factors affecting an organism’s behavior and physiology on daily and seasonal basis. Over the years, studies regarding human food habits and its subsequent impa...
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Planning factors affecting carbon footprints of residents: Density, land use, and suburbanization Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Taehyun Kim, Youngre Noh
Energy-efficient urban development and carbon footprints (CFs) are often discussed in relation to climate change. The optimal level of urban density from a carbon reduction perspective at the city ...
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The mediational role of individual and organizational factors in the work engagement and occupational stress relationship Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Majoreen Osafroadu Amankwah
This study investigated the mediating role of individual and organizational factors on the relationship between work engagement and occupational stress among males and females, junior, mid-level an...
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Education and marriage behavior Among rural folks: A dilemma of senior high school graduates in Northern-Ghana Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Alhassan Issahaku, Abiba Asoma
Education is necessary for human development, especially at a time when the conventional labor market is in decline, yet the challenges of child marriage remain unresolved. The study examined how N...
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Thermal desorption-based method for quantifying semi-volatile organic compounds in house dust: Method development and evaluation Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Yuqing Zhu, Xinyi Huang, Chuang Geng, Jianping Cao
As an important storage medium of semi-volatile organic compounds (SVOC) in indoor environments, house dust has been extensively used to assess the pollution level of indoor SVOC. SVOC in house dus...
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Into the Hive-Mind: Shared Absorption and Cardiac Interrelations in Expert and Student String Quartets Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Simon Høffding, Wenbo Yi, Eigil Lippert, Victor Gonzales Sanchez, Laura Bishop, Bruno Laeng, Anne Danielsen, Alexander Refsum Jensenius, Sebastian Wallot
Expert musicians portray awe-inspiring precision, timing, and phrasing and may be thought to partake in a “hive-mind.” Such a shared musical absorption is characterized by a heightened empathic rel...
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Combining Worlds: A Mixed Method for Understanding Learning Spaces Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Luke McCrone, Martyn Kingsbury
Understanding student interaction in learning spaces is an ongoing challenge. The move away from didactic lecture delivery towards more active and hybrid learning renders this challenge ever more d...
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The call type variation and usages of the Eurasian tree sparrow Passer montanus Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Ju-Hyun Lee, Ha-Cheol Sung
Bird call, which is widely used in all species of birds, is short, simple, and functionally diverse in comparison to song. Here, we have recorded call types of Eurasian tree sparrows (Passer montan...
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EXPRESS: Normative Values and Diagnostic Optimisation of Three Social Cognition Measures For Autism And Schizophrenia Diagnosis in a healthy adolescent and adult sample Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Monica Mazza, Ilenia Le Donne, Roberto Vagnetti, Margherita Attanasio, Maria Paola Greco, Maria Chiara Pino, Marco Valenti
Awareness of the importance of assessing social cognition skills in conditions showing atypical social behaviours has increased over the years. However, the evaluation of the psychometric propertie...
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EXPRESS: Understanding the complexities of mathematical cognition: A multi-level framework Avian Biol. Res. (IF 0.6) Pub Date : 2023-05-02 Camilla Gilmore
Mathematics skills are associated with future employment, wellbeing and quality of life. However, many adults and children fail to learn the mathematics skills they require. To improve this situati...
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Effect of RNA preservation methods on RNA quantity and quality of field-collected avian whole blood Avian Biol. Res. (IF 0.6) Pub Date : 2023-04-05 Johanna A Harvey, Sarah A Knutie
The transcriptome comprises all RNA molecules in a sample, tissue, or organism. A limitation of comparative transcriptomic studies which compare gene expression between individuals often under some...
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Male plumage colouration predicts female reproductive investment and nestling survival in a colour dimorphic tropical songbird Avian Biol. Res. (IF 0.6) Pub Date : 2023-01-19 Dalila de Fátima Ferreira, Filipe C. R. Cunha, Leonardo Esteves Lopes
In sexually colour dimorphic bird species, males can exhibit phenotypic variation, with males breeding in either dull female-like plumage or brightly coloured plumage. Two contradictory hypotheses ...
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Consumption of arthropods by hummingbirds in the Sierra Madre de Chiapas, Mexico Avian Biol. Res. (IF 0.6) Pub Date : 2022-12-27 Ruth Partida-Lara, Paula L Enríquez, Guillermo Ibarra Nuñez, Eduardo Chamé Vázquez
An organism's morphological features can determine the type of prey they consume due to adaptive advantages in capturing them, for example, the shape and length of the bill in birds. Hummingbirds h...
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Radar Indications of Altered Foraging Behavior during the February 2021 Severe North American Cold Wave Avian Biol. Res. (IF 0.6) Pub Date : 2022-12-06 Matthew S Van Den Broeke
Total radar cross-section of birds was quantified in observations of four large bird assemblages with daily sunrise foraging flights for January and February 2021, including the severe February 202...
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Symbiotic microbes play a role more important than preen gland in avian pheromone production––A review Avian Biol. Res. (IF 0.6) Pub Date : 2022-11-03 Dharmaraj Praveenkumar, Arumugam Vinothkumar, Gnanasekaran Saravanan, Muniraj Selvakumar, Alagan Subbaiah Vijayakumar, Pachan Kolanchinathan, Soundararajan Kamalakkannan, Shanmugam Achiraman
The uropygial gland or preen gland is a complex holocrine structure present only in birds, and plays an important role in avian communication and reproduction. This gland produces preen oil, which ...
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Survival of a small reintroduced griffon vulture population in the Apennines: Insights from Global Positioning System tracking Avian Biol. Res. (IF 0.6) Pub Date : 2022-10-31 Flavio Monti, Pietro Serroni, Francesco Rotondaro, Alberto Sangiuliano, Andrea Sforzi, Giancarlo Opramolla, Antonello Pascazi, Samuele Spacca, Filippo La Civita, Mario Posillico
Conservation translocations (e.g., restocking, reintroductions) represent efficient tools to prevent the extinction or favouring the return of previously extirpated populations into the wild. Evalu...
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Interspecific differences in brood desertion by female diving ducks in relation to duckling age and environmental conditions Avian Biol. Res. (IF 0.6) Pub Date : 2022-10-19 Juan A Amat, Miguel A Rendón
Studies on brood desertion in birds have been mainly conducted on species with biparental care, and less often on uniparental species. Females of many duck species remain with their ducklings, unas...
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Habitat use and niche overlap of ground-nesting steppic birds Avian Biol. Res. (IF 0.6) Pub Date : 2022-10-03 Gianpasquale Chiatante
Steppic habitats host an extremely high proportion of birds with unfavourable conservation status in Europe, such as larks. This research aims to both investigate habitat-lark relationships and ass...
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Microhabitat selection of blue eared pheasant (Crossoptilon auritum) during breeding period in Helan Mountains, China Avian Biol. Res. (IF 0.6) Pub Date : 2022-09-09 Zong-zhi Li, Bo Pang, Zhi-cheng Yao, Shu-hui Mi, Zhen-sheng Liu, Li-wei Teng
Habitat degradation and fragmentation are crucial factors which result in biodiversity loss among the world. Understanding how species respond to the habitat change is helpful and essential for the...
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Assessing the effects of Close-to-Nature Forestry on forest birds in the eastern United States: A case study and way forward Avian Biol. Res. (IF 0.6) Pub Date : 2022-08-27 James M. Gresh, Jason R. Courter
Over the last half-century, North American forest birds have experienced staggering declines, while at the same time, many metrics indicate that North American forest health has improved. While the...
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Trees and people determine the feeding activity of a migratory bird in an urban mega-park of Mexico city Avian Biol. Res. (IF 0.6) Pub Date : 2022-07-14 Rubén Ortega-Álvarez, Rafael Calderón-Parra, Fernando García-Luna
Feeding research is relevant to comprehend wildlife use of urban systems and to guide management practices. Coupling foraging with habitat assessments is important because environmental conditions ...
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Influence of breeding time, nest size, water depth, and egg size on the breeding success of the little bittern Ixobrychus minutus Avian Biol. Res. (IF 0.6) Pub Date : 2022-06-28 Seyed Mehdi Amininasab, Seyed Masoud Hosseini-Moosavi, Charles CY Xu
Understanding the factors that influence avian reproductive output is critical for bird conservation as they reveal key considerations that directly impact a species’ long term survival and should ...
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Effects of urban sugar water feeding on bird body condition and avian diseases Avian Biol. Res. (IF 0.6) Pub Date : 2022-06-23 Daria A Erastova, Josie A Galbraith, Kristal E Cain, Yolanda van Heezik, Ellen A Hume, Margaret C Stanley
Garden bird sugar water feeding is increasingly popular worldwide, but little is known about its effects on bird health and associated diseases. There is a concern that feeding stations can accumul...
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Causes of admission and outcomes of white-tailed eagles Haliaeetus albicilla in wildlife rescue centres in the Czech Republic during 2010–2020 Avian Biol. Res. (IF 0.6) Pub Date : 2022-06-06 Lenka Rozsypalová, Dana Rymešová, Petr Stýblo, Ivan Literák
Admission records from wildlife rescue centres can help identify causes of morbidity for species of conservation concern, and to assess the effectiveness of rehabilitation. This study documents the...
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Provisioning behavior of male and female Loggerhead Shrikes Avian Biol. Res. (IF 0.6) Pub Date : 2022-05-16 Gary Ritchison, Lauren Lewis, C. Adam Heist
The unique predatory, caching, and impaling behaviors of shrikes (Laniidae) may provide these unusual passerines with alternative provisioning strategies compared to other songbirds, but few studie...
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Turdus flavipes altitudinal migration in the Atlantic Forest The Yellow-legged Thrush is a partial altitudinal migrant in the Atlantic Forest Avian Biol. Res. (IF 0.6) Pub Date : 2022-05-03 André de Camargo Guaraldo, Juliane Coimbra Bczuska, Lilian Tonelli Manica
Few studies on bird migration address altitudinal migration in South America, a regional-scale movement currently known for only nine species within the threatened Atlantic Forest biome. The Yellow...
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Natal philopatry is associated with smaller nest size in a cavity-nesting bird with consequences for nest box temperature Avian Biol. Res. (IF 0.6) Pub Date : 2022-04-08 Angelica N Reed, Susan B McRae
Considerable within-population variation in nest size exists among cavity nesters. We sought to explain this by studying a multi-brooded population of Eastern Bluebirds (Sialia sialis) breeding in ...
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Analysis of trade in endemic Javan hill partridges over the last quarter of a century period Avian Biol. Res. (IF 0.6) Pub Date : 2022-04-05 Vincent Nijman
There is increasing recognition of the impact that wildlife trade has on globally threatened and geographically restricted species. For only a few species do we have long-term datasets on their pre...
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Nest predation, brood parasitism and the reproductive success of the masked laughingthrush Garrulax perspicillatus in the rural habitat of central China Avian Biol. Res. (IF 0.6) Pub Date : 2022-01-31 Weibin Guo, Buge Lin, Zhiqing Hu, Shudan Tan, Jiaying Tian, Changcao Wang
Knowledge of nest site selection and reproductive ecology is fundamental to understanding the evolution of life history traits and developing species conservation strategies. However, life history traits of species in the genus Garrulax are poorly known. Particularly, research on the breeding biology of Garrulax perspicillatus in their natural habitat and comparison between populations in different
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Keratinolytic bacteria from the feathers of wild Dark-eyed Juncos (Junco hyemalis) Avian Biol. Res. (IF 0.6) Pub Date : 2022-01-27 Minh D. Tran, John W. Dille, Weslin L. Camden, Diamond Brunt, Christopher M. Rogers, Mark A. Schneegurt
We collected >300 bacterial isolates from overwintering Dark-eyed Juncos (Junco hyemalis) to find that ∼40% appear to degrade the structural protein of feathers using extracellular keratinase enzymes. A guild of bacteria (∼18% of total counts) grew significantly better on basal salt medium (BSM) plates containing feather meal than on BSM agar-only plates (∼8% total counts). The genus-level profile
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Circadian activity in different photoperiod (12L: 12 D) and (8L: 16D) in passerine finches Avian Biol. Res. (IF 0.6) Pub Date : 2022-01-27 Garima Singh, Sachin Kumar
Circadian rhythms are more synchronized in birds than mammals. Circadian clock functions as a timing reference allow organisms fluctuations in their environments and are the basis for the transduction of seasonality from photoperiod. The present study was performed to determine the effect of constant dim and bright light illumination on circadian behavior of baya weaver bird (Ploceus philippinus),
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Parasite egg recognition based on multicomponent cues by green-backed tits (Parus monticolus) Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-30 Ping Ye, Yan Cai, Jianli Bi, Xiaogang Yao, Guangrong Li, Canchao Yang
Egg recognition and rejection is a common and effective anti-parasitism adaptation in bird hosts. Hosts reject alien eggs using recognition signals such as egg ground color and maculation. Green-backed tits (Parus monticolus) have a highly developed capability for recognizing parasite eggs, but the cues used for egg recognition are unclear. We combined avian visual perceptual modeling and field experiments
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Delayed timing of breeding attempts, but not time lost to nest construction, reduces the annual reproductive output of the Eastern Phoebe (Sayornis phoebe) Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-29 Janice K Enos, Mark E Hauber, Zachary Aidala
For many birds, nest construction is a costly aspect of parental care, trading finite energetic resources between parental care and self-maintenance. For multi-brooded organisms with short breeding seasons, such as migratory passerines, repeated nest construction could be especially costly if the activity delays the onset of breeding attempts. Earlier studies on passerines that reuse nests between
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Composition of nests constructed by species in the Motacillidae, Sylviidae and Prunellidae Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-28 Amy M Dickinson, Emily Locke, Liberty A Gray, Sophie L Bennett, Lucia E Biddle, Adrian M Goodman, Denis Charles Deeming
Bird nests can be complex bio-engineered structures constructed from a range of materials to provide a site for incubation, and in many species chick rearing. Reports of the materials used in nest walls and cup linings are typically qualitative and do not assist in understanding the functional properties of the structure as a whole. This paper provides size and composition data for nests from four
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An attempt to determine the size of the Common Barn-owl’s (Tyto alba) hunting area based on its prey composition Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-27 Jenő J Purger, Dávid Szép
The relative abundance of small mammal species detected from Common Barn-owl pellets reflects the landscape structure and habitat pattern of the owl’s hunting area, but it is also affected by the size of the collected pellet sample and the size of the supposed hunting area. The questions arise: how many pellets should be collected and analyzed as well as how large hunting area should be taken into
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How food supply in rubbish dumps affects the breeding success and offspring mortality of cattle Egret Bubulcus ibis? Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-24 Rachida Gherbi-Salmi, Abdelkrim Si Bachir, Cherif Ghazi, Salah Eddine Doumandji
The objective of this study was to evaluate the effect of food supply in garbage dumps on the reproductive fitness of Cattle Egret Bubulcus ibis and offspring losses. A total of 236 nests were monitored during two distinct periods of 2 years for each: 146 nests during a period without food supply in dumps (1998–1999) and 90 with food supply in dumps (2007–2008). The study was carried out in the colony
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Phylogenetic relationships and genetic variations among cinereous vultures Aegypius monachus in South Korea Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-24 Mu-Yeong Lee, Seon-Mi Lee, Seung-Gu Kang, Hye Sook Jeon, Hee-Jong Kim, Jin-Young Park, Junghwa An
Mature individuals of the cinereous vulture, Aegypius monachus, number 15,600–21,000 birds worldwide and population size of the bird has been in decline due to poisoned baits and the decreasing availability of food. Approximately 12–16% of the global population of cinereous vultures spend their winters in Korean regions that are hence important areas. In this study, the population structure and genetic
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Towards accurate and simple morphometric sex differentiation in Bonelli’s Eagle Aquila fasciata nestlings: Interpopulation variations and influence of growth conditions Avian Biol. Res. (IF 0.6) Pub Date : 2021-12-23 Daniel Redondo-Gómez, Jesús Bautista, José María Gil-Sánchez, Francesc Parés, Antonio Hernández-Matías, Jaime Resano-Mayor, Joan Real, Christian Pacteau, Agustín Madero, Marcos Moleón
Morphometric methods of sex differentiation may be cheap, simple, quick, and reliable alternatives to molecular approaches. However, there are still important uncertainties regarding the use of morphometric methods in birds, particularly regarding their applicability to different populations and environmental conditions. Between 2004 and 2019, we sampled 245 Bonelli´s Eagle Aquila fasciata nestlings
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Corrigendum to Winter diet of Long-eared Owls (Asio otus) in the southern Pannonian Plain (Serbia, Vojvodina) Avian Biol. Res. (IF 0.6) Pub Date : 2021-11-26
Tulis F, Poljak N, Ruzic M, et al. Winter diet of Long-eared Owls (Asio otus) in the southern Pannonian Plain (Serbia, Vojvodina). Avian Biology Research. Epub ahead of print 23 September 2021. DOI:10.1177/17581559211036582
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Novelty at dawn: Exploration, low neophobia and crepuscular activity in a wild Common Buzzard (Buteo buteo) Avian Biol. Res. (IF 0.6) Pub Date : 2021-11-05 Berenika Mioduszewska, Mark O’Hara, Rafał Stryjek
Raptor cognition has received limited research attention, despite the importance of comparative investigations for reconstructing the evolution of complex cognition. Field studies provide essential ecological context for cognition in the natural habitat, although this approach is often challenging due to extensive procedures involved in cognitive testing. One predisposition suggested to contribute
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Population status and distribution of the critically endangered Indian Courser (Cursorius coromandelicus) on Delft Island, Sri Lanka Avian Biol. Res. (IF 0.6) Pub Date : 2021-10-26 Nitharsan Aloysius, Shashi Madhushanka, Chathuri Chandrika
The critically endangered Indian Courser (Cursorius coromandelicus) is a rare resident bird species in Sri Lanka. This bird species is restricted to the northern avifaunal region of Sri Lanka, and even there it has been recorded from only a few locations. Thus, it is identified as one of the rarest birds in Sri Lanka. A 1-year study was conducted to investigate Indian Courser population and their distribution
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Nest-site selection and nest design of Iberian bullfinches Pyrrhula pyrrhula iberiae in northwestern Spain Avian Biol. Res. (IF 0.6) Pub Date : 2021-09-27 Ángel Hernández, Pilar Zaldívar
Nest-habitat selection and nest design in a Eurasian bullfinch population in the Iberian Peninsula are thoroughly addressed in this study for the first time. Hedgerows and meadows were found around all of the nests and most of them were supported by hedgerows, so bullfinches consistently used the general woody vegetation available as reproduction habitat and site. Also, poplar plantations appeared
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Winter diet of Long-eared Owls (Asio otus) in the southern Pannonian Plain (Serbia, Vojvodina) Avian Biol. Res. (IF 0.6) Pub Date : 2021-09-23 Filip Tulis, Nadja Poljak, Milan Ruzic, Ján Obuch
Owl diets undergo qualitative changes across the different regions of their area of distribution. During the four winters (from 2014–15 to 2017–18), Long-eared Owls’ pellets were collected at three winterroosts located at the southern part of Pannonian Plain, in the Serbian province of Vojvodina. In 8070 prey items from pellets, we identified 16 mammal and 32 bird species. The Common Vole was the dominant
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Ecotoxicology assessments in avian species using cell-based models: A review Avian Biol. Res. (IF 0.6) Pub Date : 2021-07-19 Ashley L. Ball, Ramon Lavado
Cell-based models in avian species have historically focused on virology due to the demands of animal agriculture and vaccine production industries. Recent years have witnessed a gradual rise in the use of these models (in ovo, cell lines, primary cell cultures, organ slices, and organ-on-a-chip) in ecotoxicological studies as scientists and governments begin the shift to new approach methodologies
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Comparison of head size and bite force in two sympatric munia species Avian Biol. Res. (IF 0.6) Pub Date : 2021-07-05 Xiaodong Rao, Canchao Yang, Wei Liang
Brain size is a key factor determining the performance and fitness of an organism; birds with relatively larger brains might have advantages in the utilization of resources and dispersal. Bite force is another important indicator of fitness, and plays an essential role in intra- and inter-specific competition. In this study, a comparative analysis was conducted on the head size and bite force of the
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Can chemical cues from a predator change the nest-selection of birds? Avian Biol. Res. (IF 0.6) Pub Date : 2021-05-03 Jong Koo Lee
The nest-selection process of many birds can be affected by traces of potential predators. However, it remains debatable if birds are capable of recognizing and responding to chemical cues of predators when selecting their nest sites. To investigate this, I installed a pair of nest boxes at 12 sites in 2013 and 2014 and 24 sites in 2015 and 2016, each with nest conditions that differed for two variables
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Sex identification of the ashy-throated parrotbill (Paradoxornis alphonsianus): A species heavily hunted for bird fighting in Guizhou Province, China Avian Biol. Res. (IF 0.6) Pub Date : 2021-05-03 Nanqian Xiong, Wei Tang, Tianyu Mu, Chuanyin Dai
The ashy-throated parrotbill (Paradoxornis alphonsianus) is a sexually monomorphic species with high abundance in Southwest China, which has been widely used as a fighting bird across Guizhou Province, leading it to become one of the most coveted and heavily hunted wild birds in the region at present. Information on the sexes is a fundamental requirement for a wide variety of avian studies. From a
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Efficacy of acclimating and releasing captive-reared and wild-translocated Northern bobwhites Avian Biol. Res. (IF 0.6) Pub Date : 2021-04-26 Kelly S Reyna, Jeffrey G Whitt, William L Newman
Northern bobwhite populations are dwindling across their range. Accordingly, in areas with bobwhite habitat restoration and no nearby populations, effective population restoration techniques are needed. Here, we evaluated three bobwhite restoration release strategies: (1) release of captive-reared bobwhites on sites with and without resident populations, (2) translocation of wild-trapped bobwhites
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Diet supplementation with fish broth in early life improves bone development and growth of scarlet ibis (Eudocimus ruber) Avian Biol. Res. (IF 0.6) Pub Date : 2021-04-18 Stefânia Araújo Miranda, Igor Chamon Assumpção Seligmann, Kedson Raul de Souza Lima, Regiane Rodrigues Santos, Sheyla Farhayldes Souza Domingues
This study aimed to evaluate the effect of different dietary supplementations (fish or shrimp) on the growth, bone development and beak pigment disappearance in scarlet ibis kept in captivity. One-day-old scarlet ibis (n = 20) were assigned to one of two diets, where 10 birds were fed a diluted commercial diet supplemented with shrimp broth, and 10 were fed a diluted commercial diet supplemented with
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Social isolation-induced effects on male-specific courtship behaviours and dendritic architecture in associative forebrain areas in Zebra finches (Taeniopygia guttata) Avian Biol. Res. (IF 0.6) Pub Date : 2021-03-23 Vidya Shukla, Monika Sadananda
Zebra finches (Taeniopygia guttata) are highly monogamous birds that maintain lifelong pair-bonds. Females make the mate choice based on the quality of males who initiate pair-bond formation by courting the female. A mate separation-reunion paradigm can help to evaluate the adaptive value of social affiliation of male finches and their affinity to new females in absence of mated females which can manifest
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Differential timing of autumn migration between sex groups in adult European honey buzzards Pernis apivorus Avian Biol. Res. (IF 0.6) Pub Date : 2021-03-17 Michele Cento, Vittoria Malpassuti, Giacomo Dell’Omo, Nicolantonio Agostini
The European honey buzzard Pernis apivorus is a summer visitor in Europe, wintering mostly in West-central Africa. Previous studies concerning timing of autumn migration in relation to sex groups provided contrasting results. In particular, a field survey made in southern Sweden did not report differences in timing, while a satellite study via GPS tracking on six adults, three males, and three females
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A revision of bird skin preparation aimed at improving the scientific value of ornithological collections Avian Biol. Res. (IF 0.6) Pub Date : 2021-01-28 José Carrillo-Ortiz, Santi Guallar, Jessica Martínez-Vargas, Javier Quesada
The methods used to preserve bird skins in museums have a potentially crucial impact on the feasibility and use of these specimens as a source of biological knowledge, although this subject is rarely broached. Study skins of birds are usually prepared with folded wings and straight legs to facilitate storage in the collection; yet, this method can hamper the measurement and examination of certain important
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Seasonal variation in gonad physiology indicates juvenile breeding in the Saker Falcon (Falco cherrug) Avian Biol. Res. (IF 0.6) Pub Date : 2020-11-30 Andrew Dixon, Janelle Ward, Sarangerel Ichinkhorloo, Tuvshinjargal Erdenechimeg, Batbayar Galtbalt, Batmunkh Davaasuren, Batbayar Bold, Nyambayar Batbayar
We describe seasonal changes in the physiology of reproductive organs of Saker Falcons electrocuted on an electricity power line in Mongolia. Macroscopic examination of the gonads revealed asymmetr...
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Distribution and variation of neuropeptide Y in the brain of native Thai chicken Avian Biol. Res. (IF 0.6) Pub Date : 2020-11-09 Natagarn Sartsoongnoen, Boonyarit Kamkrathok, Taweesak Songserm, Yupaporn Chaiseha
Neuropeptide Y (NPY) plays a pivotal role in food intake and body weight regulation in both birds and mammals. Unlike imported broilers and layers, native Thai chicken, a tropical non-seasonal bree...
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Tissue structure contributes to the production of a coloured skin display in the Common Myna Avian Biol. Res. (IF 0.6) Pub Date : 2020-10-28 Chloe Peneaux, Philip M Hansbro, Phil Jobling, John L Holdsworth, Andrea S Griffin
Conspicuous coloured displays from ultraviolet to bright red have been documented in many species throughout the animal kingdom. These colours often occur as sexual signals and can be incorporated into different types of integuments (e.g. scales, feathers, skin). Two main mechanisms are known to produce coloured integuments: pigmentation and tissue structure. Although pigmental and structural coloration
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Feather morphological predictors of angle-dependent color changes in parrot plumage Avian Biol. Res. (IF 0.6) Pub Date : 2020-10-28 Steven Reed, Richard K Simpson, Kevin J McGraw
Among the most ornate animal traits in nature are the angle-dependent (e.g. iridescent) structural colors of many fishes, damselflies, birds, beetles, and butterflies. Though we now have a solid understanding of the mechanisms that create angle-dependent coloration in several groups, we know little about whether pigmentary colors reflect light in an angle-dependent fashion or if similar or different
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Applying opportunistic observations to model current and future suitability of the Kopet Dagh Mountains for a Near Threatened avian scavenger Avian Biol. Res. (IF 0.6) Pub Date : 2020-10-19 Sayyad Sheykhi Ilanloo, Ali Khani, Anooshe Kafash, Negin Valizadegan, Sohrab Ashrafi, Franziska Loercher, Elham Ebrahimi, Masoud Yousefi
Many avian species are in danger of extinction due to anthropogenic activities and climate change. Human activities have led to eradication of many natural habitats and climate change has altered s...
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Diversity, distribution and relative abundance of avifauna at Ansas Dam and surrounding farmland site Debre Berhan Town, Ethiopia Avian Biol. Res. (IF 0.6) Pub Date : 2020-10-14 Alemayehu Shiferaw, Dereje Yazezew
The diversity, distribution, and relative abundance of avifauna were studied at and Around Ansas Dam, Debre Berhan Town, Ethiopia, from early September 2018 to early February 2019, covering both we...
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Metabolic cost of inflammatory response of ruby-throated hummingbirds (Archilochus colubris) Avian Biol. Res. (IF 0.6) Pub Date : 2020-10-14 L Gerardo Herrera M, Nadia Bayram, Kenneth C Welch
Animals with a slow pace of life and high mass-specific metabolic rates are expected to invest less in innate immune responses. We measured skin inflammation and the resting metabolic rate (RMR) of...
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Radiotracking refines the role of food supplementation on overwinter survival of the Dark-eyed Junco (Junco hyemalis) Avian Biol. Res. (IF 0.6) Pub Date : 2020-09-02 Andrew J Spellmeyer, Christopher M Rogers, Mark A Schneegurt
Resource availability, particularly food, can limit the size of bird populations during the nonbreeding season. Resident and short-distance migrant birds, wintering in colder environments, should show strong effects of food limitation on winter survival. Here, we introduce a novel experiment testing for the effect of supplemental feeding on the winter survival of the Dark-eyed Junco (Junco hyemalis)