Article
Ornithology
Isabel Hunter, Kevin Kuhlmann Clausen, Thomas Bregnballe
Summary: The nest attendance of Kentish Plovers at an undisturbed site increased over time and was influenced by ambient temperature and day-night cycle. These findings provide a baseline for investigating the effects of disturbance on nest attendance.
Article
Ornithology
Adrian Barrero, Julia Gomez-Catasus, Cristian Perez-Granados, Daniel Bustillo-de la Rosa, Juan Traba
Summary: Territorial defence of birds is influenced by factors such as food abundance and conspecific density. A study on Dupont's Lark found that response to foreign male playback was influenced by conspecific density, habitat quality, and male body condition. Areas with higher conspecific density and poorer habitat quality had a greater probability of response, while areas with lower conspecific density had longer latency time. Intrasexual communication increased with habitat quality, while intraspecific communication increased in poorer quality habitats and at a higher density of conspecifics. Body condition did not have an effect on the response.
Review
Ornithology
David Jarrett, Aleksi Lehikoinen, Steve Willis
Summary: A review of methods used to monitor breeding productivity in wader populations was conducted. The study identified different metrics, such as hatching success, fledging success, and young fledged per pair, based on whether direct observations of broods were possible. The review highlights the challenges in monitoring breeding productivity and emphasizes the importance of accurate data for effective conservation interventions.
Article
Ornithology
Alex Hoi Hang Chan, Jingqi Liu, Terry Burke, William D. Pearse, Julia Schroeder
Summary: Measuring parental care behaviour in the wild is important but labor-intensive. This study compares different methods of extracting data from videos and finds that a hybrid annotation method is a cost-effective way to collect data. The study also highlights the importance of using pre-existing frameworks to save annotation time.
JOURNAL OF AVIAN BIOLOGY
(2023)
Article
Ornithology
Riccardo Alba, Martha Maria Sander, Domenico Rosselli, Dan Chamberlain
Summary: Mountain habitats are important for breeding and migration of alpine bird species, and their conservation is crucial. This study recorded 104 bird species in the Western Italian Alps, indicating that many bird species utilize these habitats. The highest bird diversity and abundance were found during the early migration period, with treeline habitats and south-facing slopes having the most migrants, possibly due to habitat structure and solar radiation. Managing protected areas in mountains should consider these factors to protect mountain bird diversity throughout the year and counteract climate and land-use changes.
JOURNAL OF ORNITHOLOGY
(2023)
Article
Biodiversity Conservation
Jan van der Winden, Peter W. van Horssen, Symen Deuzeman, Theunis Piersma
Summary: Many Afro-Palearctic songbird migrants have declined and conservation efforts have focused on breeding habitat restoration. However, this study suggests that pressures outside the breeding season might also contribute to the decline. The Great Reed Warbler has experienced population decline in the western breeding range but maintained stable levels in central and eastern Europe. The study also found that even small populations can maintain phenotypic variation.
BIRD CONSERVATION INTERNATIONAL
(2023)
Article
Ornithology
Nicholas I. Wilkinson, Molly Doubleday, Andrew Douse, Andy Ford, Leah A. Kelly, Kenny Kortland, Juli Titherington, Simon R. Wotton, Steven R. Ewing
Summary: The estimated number of Western Capercaillies in Scotland in winter 2021-2022 was 532, which is 52% lower than the estimate in 2015-2016. The majority of the population is concentrated in Badenoch and Strathspey region. With the population at its lowest level since monitoring began in 1992-1994, measures are urgently needed to improve breeding success and survival.
Article
Ornithology
Hilary Brooker-Carey, Chris P. F. Redfern, Paul G. Morrison
Summary: The arrival and distribution of Common Eider ducklings in a commercial and recreational estuarine environment were studied. The study found that duckling counts were higher in less disturbed parts of the estuary, with varying first-arrival dates each year. Weather conditions were linked to yearly variation in duckling arrival rates. Daily arrival counts were influenced by tide, rain, and wind direction. There was a high daily rate of duckling loss, which correlated with the number of attendant females.
Article
Ornithology
W. Alexander Hopping, Christopher J. Sayers, Noe Roger Huaraca-Charca, Holger Klinck
Summary: This study quantified the temporal variation in bird vocal activity and observed species richness in an Amazonian reserve using autonomous recording units. The study found significant and consistent temporal variation within the dawn hour and across days. The results highlight the importance of considering temporal variables in surveys to avoid overlooking temporal variation in Amazonian soundscapes.
Article
Ornithology
Dagmar S. Cimiotti, Hermann Hoetker, Stefan Garthe
Summary: This study analyzed the exploratory movements of shelducks in a dynamic habitat and found that birds engage in frequent exploratory activities, especially before the flightless period. The study also discovered that shelducks explored the molting area but did not explore it for longer or more often than other places.
JOURNAL OF ORNITHOLOGY
(2023)
Article
Ornithology
Bao-Sen Shieh, Shih-Hsiung Liang, Chia-Hung Jen
Summary: Noise pollution is an important factor influencing the vocal behavior of urban wildlife, and many songbirds raise their song minimum frequencies in response to urban noise. However, not all songbirds exhibit this adaptation, raising questions about its validity. Additionally, noise levels and acoustic structures may affect the change in minimum frequency.
JOURNAL OF AVIAN BIOLOGY
(2023)
Article
Ornithology
Carole A. Niffenegger, Sebastian Dirren, Christian Schano, Fraenzi Korner-Nievergelt
Summary: Nest cavities with suitable thermal conditions can provide fitness benefits for birds, but human-made cavities may have poorer insulation and experience more extreme temperatures, potentially impacting offspring viability.
JOURNAL OF ORNITHOLOGY
(2023)
Article
Ornithology
Helon Simoes Oliveira, Isabella Assis Barreto, Luiz dos Anjos
Summary: Morning is the best time to sample bird communities in tropical forests. The first four periods of 15 minutes after sunrise are the most effective, covering over 96% of total species richness. However, there is significant variation in species composition among morning periods, and later periods add only a small number of new species. For researchers interested in species richness, the first four periods are most important, while those investigating species composition may need to spend more time in the field.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Leonardo Barbosa da Silva
Summary: This study reports the seed dispersal of Brazilian pepper by Glaucidium brasilianum through diploendozoochory, an ecological relationship that has received little attention. The predation records of 19 bird species were analyzed, indicating that the predation of frugivorous and omnivorous species may facilitate the dispersal of small-seeded plants. This highlights the importance of further studying this interaction in ecological research on bird-mediated seed dispersal.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Guilherme Wince de Moura, Aloysio Souza de Moura
Summary: This article reports the first case of heterocoprophagy between two wild birds, which contributes to the understanding of their natural history.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
John Murillo, Edwin Campbell-Thompson, Thomas F. Bishop, Caroline W. Beck, Hamish G. Spencer
Summary: This article reports recent sightings of a bilateral gynandromorph of the Green Honeycreeper from Colombia. The bird exhibited male plumage on the right side and female plumage on the left, and it was present for at least 21 months. The study also provides a comprehensive review of previous records of passerine bilateral gynandromorphy.
JOURNAL OF FIELD ORNITHOLOGY
(2023)
Article
Biodiversity Conservation
William B. Lewis, Robert J. Cooper, Michael T. Hallworth, Alicia R. Brunner, T. Scott Sillett
Summary: The declining population of black-throated blue warblers at the southern edge of their breeding range in North Carolina may be exacerbated by forest loss in the Dominican Republic. The study also found differences in migratory routes and non-breeding areas between populations at the core of the range in New Hampshire and the declining population in North Carolina.
AVIAN CONSERVATION AND ECOLOGY
(2023)
Article
Ornithology
Ruben Pineda-Lopez, Mauricio Tepos-Ramirez, Alfredo Acosta-Ramirez, Angela Marlene Soto Calderon, Abigail Ocana Feregrino
Summary: Mountain systems worldwide are important research models for biological diversity, with a focus on understanding how animal communities change in different environments. However, knowledge of avian diversity in Mexico, particularly in the mountainous regions of central Mexico, remains incomplete. This study aimed to assess bird diversity along an elevational gradient, providing valuable insights into the state of Queretaro. The results revealed a gradual turnover of species and a decrease in species richness with increasing altitude.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Ivan Sazima, Darius Pukenis Tubelis
Summary: This study lists and illustrates bird species that drink water from bromeliads in the Atlantic Forest of Brazil, using records from Brazilian citizen scientists on the Wiki Aves public platform. The researchers found records of 36 bird species drinking from bromeliads, all originating from the Atlantic Forest. The study suggests that bromeliad water sources for birds in north-western Brazil have not been recorded on the platform, but there are records from north-eastern and southern Brazil that were not found in the scientific literature search. The findings of this study contribute to the understanding of bromeliad-drinking birds in Brazil and highlight the need for further research in the Amazon region.
ORNITHOLOGY RESEARCH
(2023)
Article
Ornithology
Ivan Sazima, Darius Pukenis Tubelis
Summary: This study identifies and documents the diversity and distribution of bromeliad water-drinking birds in the Atlantic Forest in Brazil through records collected by Brazilian citizen scientists on the public platform Wiki Aves. The findings support previous scientific literature that bromeliads serve as a water source for birds exclusively in the Atlantic Forest, with limited records in other regions such as north-western Brazil. Unexpected bird species were found to utilize bromeliads as a water source, warranting further research and exploration in the Amazon Forest, which has lower bromeliad species richness compared to the Atlantic Forest.
ORNITHOLOGY RESEARCH
(2023)
