Avian ecology and behavior

AI, citizen science, and the 2024 eclipse emphasize the importance of light for bird behavior

The paper uses AI and citizen science data to show that a 2024 solar eclipse caused significant behavioral changes in North American birds due to disrupted light cycles.

Delayed dichromatism in waterfowl as a convenient tool for assessing vital rates

The paper introduces a non-invasive method using apparent sex ratios to estimate adult survival and recruitment rates in waterfowl populations.

Diet of the Great Horned Owl Bubo virginianus nigrescens (Strigiformes: Strigidae) in the Northern Andes of Ecuador and a Literature Review of the Subspecies Dietary Patterns

The paper examines the diet of Great Horned Owls in northern Ecuador and reviews literature on their dietary patterns, finding mammals dominate prey with adaptability to urban areas.

Environmental and demographic mechanisms provide relative stability for a vulnerable island songbird in novel conditions

The paper uses an integrated population model to analyze ecological drivers and population trends of Island Scrub-Jays, finding slight population growth and resilience to drought despite vulnerability due to small population size.

An ornithological survey of Fergusson Island, D'Entrecasteaux Archipelago, Papua New Guinea, reveals new island records and noteworthy natural history observations

The paper documents new bird species records and breeding observations from Fergusson Island, including the first confirmed sighting of a subspecies in 126 years.

An innovative approach in identifying a network of priority wetland sites in the East Asian-Australasian Flyway for a new sustainable management investment programme

The paper identifies 147 high conservation priority wetland sites in the East Asian-Australasian Flyway using waterbird count data and international criteria.

Piping Plover Home Ranges Do Not Appear to be Impacted by Restoration of Barrier Islands and Headlands

The study examines whether Piping Plover home ranges changed due to barrier island and headland restoration, finding no significant impacts on home range size.

Deciduous forests hold conservation value for birds within South Andaman Island, India

The paper assesses bird diversity in evergreen and deciduous forests of South Andaman Island, finding deciduous forests support higher taxonomic diversity and are preferred by several endemic and threatened species.

Subtropical anticyclones shape life-history traits of a wind-reliant marine top predator

This study links intensified and poleward-shifted subtropical anticyclones to improved survival and reproduction in wandering albatrosses across all life stages.

Analysis of mixtures of birds and insects in weather radar data

This paper develops a method to estimate bird and insect proportions in weather radar data, showing it captures expected migratory patterns in understudied regions.

The daily life of a hummingbird: High-throughput tracking shows a spectrum of feeding and movement strategies

This study tracks hummingbird movement using RFID tags and finds that traplining is not a consistent strategy, instead identifying three distinct movement types within a single species.

Differential Avian Responses to Coffee Farming Lead to Community Homogenization in a Working Landscape in Jardin, Colombia.

The paper evaluates how coffee farming affects bird communities in Jardin, Colombia, finding that it homogenizes communities by favoring non-forest birds and reducing diversity.

THE INFLUENCE OF FOOD ABUNDANCE CHANGE ON SEARCH AND ATTACK BEHAVIOR OF INSECTIVOROUS BIRD IN THE MONTE DESERT, ARGENTINA

This study examines how changes in food abundance affect search and attack behaviors of three insectivorous bird species in the Monte Desert, Argentina, over three years.

Predicting the responses of the world's bird species to increases in agricultural production

The paper predicts bird species' responses to agricultural expansion using trait and taxonomic data, finding that 74-78% of terrestrial birds decline in cropland areas and that future agricultural scenarios have varying impacts on bird populations.

Agricultural landscapes with high compositional heterogeneity support both forest and farmland birds in Taiwan

The paper examines how compositional and configurational heterogeneity in agricultural landscapes affects bird species richness in Taiwan, finding that high compositional heterogeneity supports both native and introduced birds.

Continent-wide drivers of spatial synchrony in age structure across wild great tit populations

The paper quantifies spatial synchrony in great tit age structure across 32 populations and identifies drivers like clutch size, temperature, and beech crops, showing synchrony maintained up to 650km.

Tiny radio-tag backpacks impact, but do not significantly affect, hummingbird time budgets in captivity

This study examines the impact of radio-tag backpacks on captive hummingbird behavior, finding no significant effect on core behaviors but noting covariates like treatment order and time of day influence activity patterns.

Morphometry and diversity of birds in cocoa agroforestry and silvopastoral systems in the Colombian Amazon

This study examines how vegetation cover affects bird morphometry and diversity in cocoa agroforestry and silvopastoral systems in the Colombian Amazon, finding that habitat structure influences species richness and morphometric traits.

Evaluation of a Rapid Assessment Function to aid monitoring and management of Common Ravens (Corvus corax) in Washington state

The paper evaluates a Rapid Assessment Function (RAF) for estimating raven population density in sagebrush ecosystems, finding it performs well in Washington state compared to distance sampling methods.

Avian Atlas: Unveiling the Diversity Divide in Desert Realms between Tropics

This study identifies a differential avian diversity gradient in tropical deserts, showing higher diversity near the Tropic of Cancer compared to the Tropic of Capricorn.

Spatial and temporal variation in farmland bird nesting ecology: Implications for effective Corn Bunting Emberiza calandra conservation

The paper examines spatial and temporal variation in Corn Bunting nesting ecology to inform conservation strategies in farmland landscapes.

Avian elevational migrants in India's Western Ghats challenge climatic constraint theory through broader environmental tolerances.

The paper examines avian elevational migration in the Western Ghats, finding that broader environmental tolerances, not climatic constraints, drive migration patterns across seasons.

Effects of prey abundance and foliage structure in plant selection by insectivorous birds in the central Monte desert

The paper examines how insectivorous birds in the central Monte desert select plants based on prey abundance and foliage structure, finding that they prefer Prosopis flexuosa over more abundant shrubs.

Occurrence of the Humboldt Penguin (Spheniscus humboldti, Meyen, 1834) in El Ferrol Bay, Chimbote, Peru, and strategies for its conservation

The study confirms the presence of Humboldt penguins in El Ferrol Bay, Peru, and suggests that improved oceanographic conditions support their population, urging local conservation efforts.

Urban tree diversity fosters bird insectivory despite a loss in bird diversity with urbanization

The paper examines how urban tree diversity affects bird predation on insect herbivores despite declining bird diversity with urbanization.

Changing air density affects flight costs in low-flying birds

This study shows that air density affects flight costs in low-flying birds, with lower air density increasing wingbeat frequency and flight costs by 1-2%.

High variability of migration strategies in a re-established Trumpeter Swan population

The paper tracks migration strategies in re-established trumpeter swans, finding 59% engage in long-distance migration, with movement patterns linked to breeding status and latitude.

Phenotypic variation and weak behavioral isolation in a putative hybrid zone between Andean Atlapetes brushfinches (Passerellidae)

The paper examines phenotypic variation and behavioral isolation in a hybrid zone between two Andean brushfinches, finding gradual phenotypic transitions and weak prezygotic reproductive barriers.

En route activity of Chilean Elaenia, a long-distance migratory bird in South America

This study uses multi-loggers to track Chilean Elaenia migration, revealing nocturnal flight at high altitudes and long non-stop flights.

Island population demography: Breeding dynamics and drivers of Gotland's iconic Golden Eagles

The paper investigates breeding dynamics and drivers of Golden Eagles on Gotland, but the manuscript and associated files are removed due to confidential information.