Using DNA barcoding and stable isotope analysis, researchers identified the species of birds involved in the Jan. 15 airline crash into the Hudson River as migratory Canada geese. The findings emphasize the need to understand the role of migration in birdstrikes to develop effective management strategies.
Researchers at the Smithsonian Institution analyzed feather remains from a US Airways plane that crashed into the Hudson River, finding that the Canada geese involved were from a migratory population. The study's findings provide essential information for developing policies and techniques to reduce future bird strikes.
Researchers created a first-ever model that takes into account both direct and indirect transmission of avian influenza viruses among birds. The model reveals that environmental transmission can trigger outbreaks, even when no infected birds are present.
A pilot project led by RIT scientist aims to verify a model using geographic information systems technology to select optimal resting locations. The study focuses on Neotropical migrants and will inform the conservation of migratory bird species.
A study published in the Journal of Biogeography found that climate change may lead to longer bird migrations, with some species facing journeys of up to 250 miles longer. This could have significant consequences for birds' survival and ability to adapt.
Researchers found that jackdaws, a type of bird, are sensitive to human eye orientation and use it to communicate, particularly when seeking food or interacting with potential threats. The birds' ability to interpret human gestures, such as gaze alternation and pointing, suggests a high level of cognitive awareness.
A new indicator shows climate change is affecting many bird species in Europe, with some benefiting and others declining. The study found that 75% of the species studied are projected to decline due to climate change.
The Flint Hills region is experiencing population declines in three grassland bird species: dickcissel, grasshopper sparrow, and eastern meadowlark, with estimated declines of up to 29% per year. Birds are not breeding successfully due to high nest destruction by predators.
Researchers found that carotenoids may improve male sperm quality, promote healthy offspring development, and enhance color vision in birds. They also propose a positive fitness feedback loop where high carotenoid accumulation improves an individual's state and mate selection.
New research reveals that white eyes in the Zosteropidae family form new species at a faster rate than any other bird, with the fastest known rate among birds being around 2.24-3.16 species per million years. This supports the 'Great Speciator' hypothesis, suggesting intrinsic traits of sociability and adaptability drive the system.
Researchers used CT imaging to accurately reconstruct inner ear anatomy in extinct birds and reptiles, shedding light on their hearing abilities and behavior. The study found that Archaeopteryx had a similar hearing range to modern emus, suggesting it was more bird-like than reptilian.
Researchers link polygamy and paternal care in modern birds to their dinosaur ancestors. Studies found that male dinosaurs in nests had large egg clutches, suggesting multiple females contributed eggs and the males guarded them.
Hawaiian songbird species were previously mistakenly grouped with Australian honeyeaters, but Smithsonian scientists have found they represent a new family—Mohoidae—using ancient DNA analysis. The study reveals these birds diverged from their closest living ancestor 14-17 million years ago and are specialized nectar-feeders.
A global study of 5,290 bird species found that environmental variation causes birds to lay larger clutches. The study, published in PLOS Biology, also revealed that species living in seasonal environments tend to have larger clutches than those in tropical regions.
A new study found that nearly half of low pathogenic avian influenza viruses in northern pintail ducks in Alaska contained genes more closely related to Asian strains. This research validates surveillance sampling processes and demonstrates the effectiveness of genetic analysis in understanding virus exchange between continents.
Researchers have discovered a single vaccine that can protect chickens, cats, and humans against deadly bird flu pandemics. The vaccine uses a 'backbone' from the H9N2 virus to offer universal protection across multiple species.
A new study found that wind turbines do not significantly affect the distribution of seed-eating birds and corvids. However, common pheasants were the only species whose distribution was impacted by the turbines. This research is crucial for reconciling EU energy targets with biodiversity conservation efforts.
A new dinosaur discovery from Argentina reveals the presence of air sacs in a 10-meter-long predatory dinosaur, Aerosteon riocoloradensis, which shares characteristics with birds. This finding supports decades of research suggesting that birds evolved from dinosaurs.
The discovery of Aerosteon riocoloradensis reveals a unique bird-like respiratory system with air sacs. This finding supports the theory that birds evolved from dinosaurs and provides insights into their adaptation for flight.
Researchers report that male and female rufous-and-white wren partners sing duets to keep track of each other when apart. The duets also serve as a form of aggressive territory defense, with birds responding aggressively to rival individuals.
Researchers found that nearly 60% of tree species in Guam rely on native birds for seed dispersal, which could have significant impacts on forest ecosystems. The study suggests that the loss of native bird species due to invasive brown tree snakes may lead to reduced tree populations and altered ecosystem dynamics.
Researchers found that adult songbirds exposed to a novel environment undergo a significant change in their auditory brain's tuning width, becoming more selective. This process is similar to humans adapting to a new language, with increased sensitivity to fine acoustic details. In contrast, isolation caused the tuning to coarsen.
Researchers found that warmer temperatures are favouring bird species with southern European ranges, such as the Cirl Bunting and Dartford Warbler, which are becoming more common across Britain. In contrast, northern species like the Fieldfare and Redwing are experiencing declining numbers
Researchers tracked bird flight patterns using radar and found that some birds fly in tandem even when 200 meters apart, suggesting active social behavior.
A large-scale genome analysis reveals that birds did not evolve from a common ancestor as previously thought, but instead underwent multiple adaptations to diverse environments. The study's results challenge current classifications and provide valuable insights into the evolutionary history of birds.
Research at Queen's University reveals that migrating songbirds observe and learn from local birds' 'mob' behavior to avoid predators. By recognizing social cues, they can gain valuable information about predator location and identity.
Researchers analyzed bird migration patterns in eastern Massachusetts and found that 8 out of 32 species are arriving earlier due to warming temperatures. Species that winter in the southern US are generally keeping pace with climate change, while those further south are slow to adapt.
Researchers found that migratory songbirds can learn from the songs of successful birds, leading them to choose habitats with high reproductive potential. This complex communication ability suggests that songbirds may be more than just visually selecting habitats.
Researchers found that only two strains of Salmonella are common in garden birds, which are sensitive to antibiotics. This contrasts with the more resistant strains found in livestock and humans, highlighting the need for alternative approaches to infection control.
A new report by the Ecological Society of America finds that restoring fish populations in the Great Lakes leads to a shift in herring gull diet, with birds opting for terrestrial food instead. This change may have severe consequences for other species, such as terns, which are more closely tied to aquatic environments.
Researchers at New York Medical College discovered a link between bird lack of brown fat and dinosaur extinction. The study found that birds' inability to generate heat may have contributed to the demise of dinosaurs.
Researchers at the Smithsonian Tropical Research Institute found that bats are more effective pest control agents than birds in a lowland tropical rainforest. In the study, plants lost 13.3% of their leaf area when only bats were excluded, compared to 7.2% with only birds excluded.
A six-year study found that urban areas attract lower-quality Acadian Flycatcher birds, which have reduced nesting success. These birds are more likely to fail or abandon their nests and return year after year.
Birds select fruit with high antioxidant concentrations, boosting their immune systems. Researchers found that blackcaps preferred foods containing flavonoids, even when they appeared darker.
Research reveals that wandering albatrosses follow the direction of scent plumes to locate food sources, often flying crosswind and zigzagging into the wind towards meals. This unique hunting strategy allows them to cover a wide strip of ocean while conserving energy.
A new study found that male European starlings exposed to environmental pollutants develop more complex songs, which are preferred by females, and show reduced immune function. The researchers also discovered an enlargement of the brain area controlling song complexity due to estrogen exposure.
Researchers discovered that young birds' first winter environment plays a crucial role in determining their lifetime breeding grounds. The study suggests that access to water in the winter habitat is a critical factor in shaping their future migrations.
A new study reveals that tropical winter habitat plays a crucial role in determining where young migratory birds settle and nest. Birds that spend their first winter in lush habitats disperse southward, while those in harsher habitats disperse northward.
Research by the University of Exeter and Queen's University Belfast shows that providing extra food to garden birds in winter makes for a more successful breeding season in the spring. Birds that receive extra food, such as peanuts, lay eggs earlier and produce more fledglings.
Researchers aim to create flapping-wing aircraft that can hover and perch, like birds and bats, which outperform man-made planes in efficiency. By studying the aerodynamics of natural flyers, engineers hope to develop vehicles capable of performing missions in uncertain environments.
Researchers report that migratory Eurasian reed warblers can correct their travel routes after being flown east and head back to their original destinations. The findings suggest that the birds have true navigation capabilities, including identifying latitude and longitude, contradicting the notion of limited north-south navigation.
A recent study found that Arctic birds carry antibiotics-resistant bacteria, highlighting the global spread of antibiotic resistance. The researchers believe immigrating birds from Southeast Asia may have introduced these resistant bacteria to the tundra.
A University of Manchester team discovered that theropod dinosaurs had avian-like air-sac respiratory systems, allowing for efficient oxygen supply. This finding supports the theory that dinosaurs were direct ancestors of birds and had similar characteristics.
Researchers found that the earliest birds primarily made their livings on the ground rather than in trees. By analyzing toe claws of 249 species and fossilized ancestors, they concluded that early birds foraged predominantly on the ground.
Researchers at Princeton University discovered that migrating adult sparrows possess an internal navigational map, enabling them to find their way after being thrown off course by thousands of miles. In contrast, juvenile birds, lacking experience, use only a compass to orient themselves southward and struggle to adjust their flight plan.
Birds with higher stress levels adopt bolder behaviour than their peers, taking more risks in stressful situations. The 'stressed' birds explored more objects and returned to feeders quickly after being startled.
Researchers investigated the evolution of army-ant following in tropical bird species, revealing specialization categories from casual to professional dependency. The study found army-ant following has persisted for millions of years, with implications for bird populations facing threats like deforestation and global warming.
Researchers have identified a functional neuronal connection between retinal neurons and the brain's Cluster N region in migratory birds. This link suggests that migratory birds use their visual system to detect the geomagnetic field, supporting the hypothesis that they can 'see' the magnetic field.
A study published by the University of Washington found that urban bird species can endure a wider range of environmental conditions than their rural counterparts. The researchers discovered that these birds have adapted to survive in cities, which are often harsher habitats than their natural environments.
New evidence from a tiny Mongolian dinosaur suggests that small size evolved before flight in dinosaurs, forcing paleontologists to re-examine their assumptions about the evolution of birds. The study found that some dinosaur lineages actually increased in size over time, contradicting previous theories.
Research published in Biology Letters finds that dog-walking in bushland causes a significant reduction in bird diversity and abundance, with ground-dwelling birds most affected. The study's findings support the long-term prohibition of dog-walking from sensitive conservation areas.
Researchers found that over one-third of African starlings engage in cooperative breeding, a behavior typically seen in birds and other animals, due to the unpredictability of their savanna habitats. In contrast, non-cooperative species live in forests with more stable environments.
A CU-Boulder study found that bird presence in conifers increases tree growth by up to one-third, removing damaging insects. The study's findings suggest a complex relationship between birds and trees, with implications for forest health and management.
Gambel's white-crowned sparrows use testosterone to trigger seasonal growth of brain regions responsible for song production. The study found that deafened birds still grew larger song control areas as large as hearing birds, but sang less often.
A study analyzing 138 bird species reveals that maximum flight speed is not solely determined by aerodynamic scaling rules. The authors found that flight speed also reflects the evolutionary history of the species, with species from the same group tending to fly at similar speeds.
Research found that birds with brightly colored plumage and those that migrate long distances are more adversely affected by Chernobyl radiation due to their high antioxidant levels. Populations of these species declined significantly, while drab species were less affected.
A study projects that climate change and land conversion will imperil 950 to 1800 bird species by 2100, with tropical birds being particularly vulnerable due to their small ranges. The protection of tropical forests is crucial in mitigating climate change and preserving biodiversity.
A study by researchers at the University of Iowa found that veterinarians with occupational exposure to birds have significantly higher levels of antibodies against avian influenza viruses. The greatest risk factor for infection was examining sick birds, highlighting the need for priority access to pandemic vaccines and antivirals.
Researchers found that young birds learned more than half of their songs by eavesdropping on adult tutors interacting with another bird. Direct interaction with a tutor accounted for only 19% of the songs, highlighting the role of eavesdropping in song learning.
A recent study by Stanford University researchers found that tropical forest birds can thrive in coffee plantations with minimal restoration, highlighting the importance of preserving remnant trees and riparian corridors. The study suggests that humans and birds may coexist successfully if farmers leave small reserves of native forest.