Article
Ornithology
Joel Owen, Marino Fonseca de Oliveira, Courtney Meyer, Leslie Paige, Liza Willett, Dorothy M. Fragaszy
Summary: We made video and audio recordings of red and green macaws in a nest in Brazil, documenting their behaviors such as feeding, preening, and vocalizing. These direct observations provide valuable insights for the conservation and reintroduction of these birds.
ORNITHOLOGY RESEARCH
(2023)
Correction
Ornithology
Joaquin Munoz, Christian Savigny, Diego Castelli, Sebastian Jimenez
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Beatriz Dybas da Natividade, Raphael Coutinho Mello, Fernando de Camargo Passos, Itibere Piaia Bernardi
Summary: This article presents the first documented record of Megascops atricapilla preying on fish in southern Brazil and emphasizes the need for further research into the dietary habits of owls.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Helon Simoes Oliveira, Isabella Assis Barreto, Luiz dos Anjos
Summary: This study investigated the variation in species richness and composition of bird communities in a tropical rainforest in Brazil over six morning periods. The results showed that the first four 15-minute periods after sunrise were the most effective for sampling, covering over 96% of total species richness. However, the taxonomic composition varied among the morning periods, with turnover dominating over nestedness. Researchers interested in species richness should focus on the first four periods, while those interested in species composition or specific species should spend more time in the field.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Yen Yi Loo, Ines G. Moran, Ana K. Menzies, Sarah Withers, Margaret C. Stanley, Kristal E. Cain
Summary: Birds primarily use vocal signals for communication, and Passerines are an important group for studying vocal communication. This study provides a detailed description of the vocal communication system of a songless species, the Rifleman, and presents the most complete vocal repertoire of this species to date. The study found variation in the acoustic structure of different call types in different behavioral contexts, and negligible differences between sexes in contact calls. The findings contribute to understanding the evolution and function of calls in Passerines and encourage further study across taxa.
JOURNAL OF FIELD ORNITHOLOGY
(2023)
Article
Ornithology
Rajesh Lenka, Basudev Tripathy, Lalit Kumar Sharma, Kailash Chandra
Summary: This study investigates bird species assemblages in Thane Creek, Mumbai, India. A total of 125 bird species belonging to 90 genera, 47 families, and 18 orders were identified. The results show differences in species richness and abundance among different localities within the creek, with the Bhandup pumping station having the highest species richness and the Thane creek flamingo sanctuary having the highest species abundance. The study also found a significant correlation between shrub density and bird species richness.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Charles Duca, Jose Nilton da Silva, Felipe Barros Alvarenga
Summary: The diet of a species is closely related to its physiological, morphological, and behavioral adaptations. This study classified the diets of Neotropical birds by analyzing the stomach contents of collected individuals. The results showed that the majority of the species had exclusively arthropod diets, with Coleoptera being the most consumed animal group. There were also species with exclusively frugivorous diets and species that mainly consumed fruits with arthropods or insects as secondary food sources.
ORNITHOLOGY RESEARCH
(2023)
Article
Biodiversity Conservation
Jenna P. B. McDermott, Darroch M. Whitaker, Ian G. Warkentin
Summary: Introduced North American red squirrels have had a significant impact on the decline and range contraction of the endemic Newfoundland Gray-cheeked Thrush. The two species are segregated by elevation, with the thrush now being commonly found at high elevation and the squirrels at low elevation. Thrushes are associated with certain habitat types at both local and landscape scales.
AVIAN CONSERVATION AND ECOLOGY
(2023)
Article
Ornithology
Joaquin Munoz, Christian Savigny, Diego Castelli, Sebastian Jimenez
Summary: This article reports on the first photo documentation of MacGillivray's prion in Uruguay and Argentina, showing that the species extensively forages in these areas after the breeding season.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Louis J. Backstrom, Nicholas P. Leseberg, Corey T. Callaghan, Chris Sanderson, Richard. A. Fuller, James E. M. Watson
Summary: Citizen science is a popular method for biodiversity surveying, and in Australia, birdwatchers have contributed to large-scale citizen science programs that hold millions of records of wild birds. However, these records are not evenly distributed, and some species have significantly fewer records. This paper analyzes the variation in survey effort and species detection to identify Australian bird species that are poorly represented in citizen science datasets.
EMU-AUSTRAL ORNITHOLOGY
(2023)
Article
Ornithology
Julia Bojarinova, Kirill Kavokin, Aleksandra Fedorishcheva, Dmitriy Sannikov, Roman Cherbunin, Alexander Pakhomov, Nikita Chernetsov
Summary: This study demonstrates that weak oscillating magnetic fields (OMF) in the radiofrequency range do not influence the celestial compass system of birds, and are only relevant to the magnetic compass system.
JOURNAL OF ORNITHOLOGY
(2023)
Article
Ornithology
Letizia Campioni, Sofia Bolumar Roda, Hany Alonso, Paulo Catry, Jose Pedro Granadeiro
Summary: Migratory birds need to balance reproduction, moult and migration to ensure survival and breeding success. This study focuses on the moult patterns of seabirds, specifically Cory's Shearwater, and investigates the presence of non-breeding adults and immatures at the breeding colony. The findings suggest that moult schedules are synchronized across different age groups and life-history stages, potentially influenced by environmental conditions.
Review
Ornithology
Aimee Gray, Susan Doyle, Caoimhe Doyle, Juliette C. Young, Barry J. Mcmahon
Summary: This study examines the contributions of birds to human health and proposes a new pathway categorization. The findings indicate that birds have significant potential to benefit human health through their contributions to ecosystem functioning, recreation, pest control, and pollination services.
Article
Ornithology
Abraao B. Leite, Agustin Camacho, Mercival R. Francisco
Summary: This study reveals that nest attachment mode is associated with variation in relative brain size of passerine birds, while nest type has no impact. Nest attachment mode is closely related to habitat, migration, and phylogeny. Top suspended nests are associated with species close to maximum relative brain size, while Rim suspended nests are linked to brain size radiations and exploration of new ecological niches.
Article
Ornithology
Helon Simoes Oliveira, Sergio Roberto Posso, Luiz dos Anjos
Summary: This study investigates the differences in functional diversity between resident and migratory bird species in Neotropical habitats. The results show that migratory birds add new traits to aquatic groups, indicating high functional turnover, while forest and non-forest groups exhibit greater functional redundancy. There is also higher overlap in functional volume between migratory and resident groups in forest and non-forest habitats compared to aquatic habitats.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Jorge Garcia-Macia, Ernesto Alvarez, Manuel Galan, Juan Jose Iglesias-Lebrija, Marc Galvez, Gerard Plana, Nuria Vallverdu, Vicente Urios
Summary: This study aimed to provide a comprehensive understanding of the juvenile dispersal of the cinereous vultures in Iberia. The study found that there is significant individual variability in the movement patterns of young cinereous vultures, with younger individuals traveling farther and occupying larger areas. There was also a negative age-related trend, with older individuals traveling shorter distances. Additionally, season and sex were found to influence the movement metrics, with warm months positively influencing flight effort and females flying farther and occupying larger areas consistently across age classes.
JOURNAL OF ORNITHOLOGY
(2023)
Review
Ornithology
Joao Marcos Guimaraes Capurucho, Lukas J. Musher, Alexander Lees, Marco A. Rego, Glaucia Del-Rio, Alexandre Aleixo, Vanessa E. Luzuriaga-Aveiga, Mateus Ferreira, Camila C. Ribas, Gregory Thom
Summary: This article provides an overview of the historical development of avian biogeographic studies in the Amazon, including recent advances and future directions. It emphasizes the use of genomic tools and new approaches for understanding the distribution patterns and diversification processes of avian diversity. The article also highlights the gaps in taxonomic and biogeographic knowledge of the Amazon region and suggests increasing research incentives and partnerships to address crucial questions.
Article
Ornithology
Kristina L. Paxton, Jennifer R. Smetzer, Patrick J. Hart, Marti J. Anderson, Eben H. Paxton
Summary: Habitat loss and fragmentation pose the greatest threats to ecosystems, making it crucial to understand how animals adapt to landscape changes. This study focuses on four endemic Hawaiian forest bird species and reveals that landscape configuration significantly affects their movement and space use patterns. In fragmented landscapes, these bird species tend to occupy a single forest patch and exhibit limited long-distance movements compared to conspecifics in continuous landscapes.
JOURNAL OF AVIAN BIOLOGY
(2023)
Article
Ornithology
Morten Frederiksen, Tycho Anker-Nilssen, Hans Schekkerman, Volker Dierschke, Matt Parsons, Stefano Marra, Ian Mitchell
Summary: Vertebrate populations are important indicators of ecosystem status, but their monitoring may not always provide early warnings of impending changes. Marine birds, in particular, exhibit slow and difficult to interpret changes in abundance. However, their breeding productivity is a more responsive indicator of ecosystem status. We propose a model-based indicator that integrates abundance and breeding productivity, and demonstrate its effectiveness using data from Black-legged Kittiwakes. This approach represents a major step forward in assessing marine bird populations and is being incorporated into conservation strategies.
Article
Ornithology
Scott A. Rush, Adrian Naveda-Rodriguez
Summary: This article reports on the first documented case of black vultures destroying conspecific nest sites and predicts an increase in nest destruction and usurpation as black vulture populations continue to grow.
ORNITHOLOGY RESEARCH
(2023)
