Articles tagged with Bird Flight
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Researchers tracked a group of young storks as they migrated to Africa and Europe, finding that leader birds lead the way to thermals. The study reveals how flying skill affects wintering grounds, with flappy birds opting for shorter journeys.
Researchers tracked Egyptian vultures along the Red Sea Flyway, revealing key migratory bird corridors and bottlenecks. The study highlights a major research gap in conservation efforts for this endangered species.
Computer simulations reveal that peregrine falcons' ability to execute maneuvers is enhanced by extreme speeds during dives from high altitudes. The research found that high-speed dives require precise tuning of mathematical laws for successful attacks.
Researchers studied the behavior of southern pied babblers in the Kalahari Desert, finding that better prospects and family dynamics influence when offspring disperse. Female birds tend to remain at home in larger groups, while males leave for improved chances of leading a group elsewhere.
Researchers used synchrotron microtomography to reveal that Archaeopteryx had adaptations similar to those of modern flying birds, suggesting it could have flown actively. This discovery provides insight into the early evolution of dinosaurian flight and challenges previous assumptions about its lifestyle.
A new model based on ground-running birds can predict the locomotion of bipedal dinosaurs by analyzing their speed and body size. The BIRDS Model uses just two inputs to estimate stride length and force exerted per step, providing insights into extinct theropod dinosaur movement.
Researchers have developed two initiatives to minimize bird-human interactions, using acoustic deterrence technology. Sonic Nets uses sound to make gathering birds uncomfortable, while Acoustic Lighthouse alerts flying birds to avoid collisions with wind turbines and other structures.
A new study found that hummingbirds' muscle capacity is associated with better deacceleration, accelerating on a dime, and upward rotations. Wing loading was also linked to rotational movement and turns in general, suggesting that evolved changes in muscle capacity may compensate for relatively small wing size.
Small birds have more energy-efficient wing strokes than bats, creating a single large air vortex ring behind them. This reduces airflow speed and demand on birds for flying long distances.
Researchers found that birds use multiple methods to control their speed in the air, compensating for tailwind, headwind, and sidewind. The study showed that birds increase wing stroke frequency to fly faster in headwinds and reduce strokes in tailwinds.
Researchers at Lund University found that large ears increase air resistance in bats, making flight less energy-efficient. However, they also provide better hearing and generate more lift, which is crucial for echolocation. The study suggests that evolution has made a compromise between flying efficiency and optimal echolocation ability.
Researchers have found that crested pigeons produce a critical high-pitched sound as they fly away from danger, which serves as an alarm signal. The birds' wings produce alternating high and low notes in flight, with the high notes being crucial for sounding an alarm.
A 120-million-year-old bird specimen from the Early Cretaceous exhibits high skeletal fusion in manus and pelvis bones, features rare in most known birds from that era. Osteohistological analysis indicates that the bird reached maturity in approximately one year, similar to modern birds.
Scientists tracked ruddy shelducks crossing the Himalayas using satellite data, finding they fly above 5,000 metres and reach 6,800 metres altitude. This challenge likely requires adaptations to cope with lower oxygen levels, surpassing even bar-headed geese' records.
Researchers found that even small amounts of oil can significantly increase the energy expenditure of migratory birds during flight. The study, published in Journal of Experimental Biology, reveals that light oiling can dramatically increase the 'flight costs' of migrating birds by 20% and 45%.
Researchers found that egg shape varies smoothly across species and is determined by membrane properties rather than shell. A strong correlation links birds with elliptical and asymmetric eggs to high flight ability, revealing adaptations for flight may have driven egg-shape variety in birds.
Research analyzing over 49,000 bird eggs reveals that unique flight adaptations drive variations in egg shape. The study found a correlation between egg shape and hand-wing index, indicating flight efficiency, contradicting previous theories on life history and nesting habits.
A study reveals that birds' flight ability influences egg shape, with more asymmetric and elliptical eggs found in better fliers. The researchers propose that the stretchy egg membrane is responsible for generating diversity in egg shapes.
Researchers discovered genetic changes in the Galapagos cormorant that led to its loss of flight and also contribute to human bone development disorders. The study provides insights into the evolution of limb size and may lead to new treatments for people with skeletal ciliopathies.
A new study by Oxford University reveals that homing pigeons can accumulate knowledge and improve their flight paths over time, mirroring human cumulative culture. The birds' collective intelligence enables them to streamline their routes, outperforming solo or group flights with no membership changes.
Researchers at Stanford University have created a new method for recording the shape of birds' wings during flight, enabling high-definition 3D reconstructions. The technique uses automated pattern recognition to capture wing deformations in real-time, revealing insights into aerodynamics and potential applications in drone design.
A new species of bird, Eoconfuciusornis, has been found with exceptionally preserved soft tissues, including feathers, skin, and collagen. The discovery provides valuable insights into the evolution of flight in birds, revealing unique features such as wing patagia and plumage patterns.
A year-long study found that birds in leafy suburban neighborhoods fly between gardens with more vegetation than those with paved gardens or roads, visiting bird feeders more often. This knowledge can help urban planners create cities more attractive to nature and humans.
The study found that fly larvae contribute to nest sanitation, leading to heavier and larger nestlings. The presence of more fly larvae had a positive effect on nestling development, while fewer larvae resulted in smaller and lighter nestlings.
A new study from the University of Tennessee reveals that Brazilian free-tailed bats can reach remarkable flight speeds, challenging existing assumptions about their capabilities. The research used a novel airplane tracking method to track the bats' flight patterns, demonstrating that they adapt to wind conditions like airplanes and birds
Researchers discovered the Brazilian free-tailed bat can reach speeds of over 160 km/h, outpacing previous records held by birds. The bat's aerodynamic body shape and longer wings enabled these exceptional speeds.
Researchers attached data loggers to common swifts to track their flight activity, confirming they spend over 99% of their non-breeding period in the air. The birds likely save energy during the day by soaring on upward currents and ascend at dawn and dusk.
Researchers at Lund University found that common swifts spend 10 months in the air, migrating and hibernating without landing. The birds' physiology is still not fully understood, but the discovery provides new insights into animal behavior.
Researchers found that experience with passing vehicles does not help birds avoid collisions, with inexperienced birds having longer flight initiation distances. Habituation to high-speed vehicles contributes to bird collisions worldwide.
A study of 196 bird species reveals that body size affects their migration patterns, with smaller birds traveling longer distances than larger ones. Soaring birds, such as raptors and albatrosses, have larger migration ranges independent of body size due to low energy consumption.
Research by University of Toronto scientists found that adult ruby-throated hummingbirds choose to balloon up in weight before flying south for the winter. They discovered that individual hummingbirds make decisions based on experience, with some fatten up to gain an advantage over rivals and establish territories quickly.
Researchers at Lund University found that larger flocks of birds travel significantly faster than smaller ones, with wind direction and turbulence playing a crucial role. This discovery provides new understanding of the complex factors influencing bird flight speeds.
Researchers found that birds can engage in slow wave sleep and rapid eye movement sleep while flying, with SWS occurring in one hemisphere or both hemispheres. The study revealed unique sleep patterns in flight, including the ability of birds to watch their surroundings while asleep.
A Queen's University researcher has challenged traditional explanations for the origin of birds' flight. His findings suggest that wings may have initially served signaling or sexual selection purposes rather than flying.
Hummingbirds process visual information uniquely to navigate through dense vegetation at high speeds. They rely on the size of objects to determine distance and use image velocity to assess altitude.
Researchers study bird and insect flight techniques to develop biologically-inspired UAV control systems. The goal is to create fully autonomous drones that can navigate without GPS or radar, enabling applications like surveillance and planetary exploration.
Frigate birds exploit upward drafts and circular movements of cumulus clouds to stay aloft for months without flapping their wings. Juveniles embark on longer journeys than adults, suggesting a genetically encoded behavior.
Researchers found that young birds can produce mature flight strokes despite underdeveloped muscles and wings. Leg-wing cooperation enables juvenile birds to flap like adults, improving traction as they climb.
Researchers found that young birds exhibit mature flight stroke early in development by leveraging leg and wing power, challenging existing ideas about flight origin. This discovery could provide insights into the evolution of flight in ancient theropod dinosaurs.
Researchers discovered a superfast wing muscle in tropical birds, which can move at speeds of over 60 Hz, faster than any animal with a backbone. This adaptation allows birds to perform extravagant courtship displays without sacrificing flying ability.
Scientists have discovered a predictable trend in the evolution of bird shape among island birds, with flying birds adapting smaller flight muscles and longer legs. This adaptation is driven by relief from predators, rather than genetic divergence.
A new bird species, Chongmingia zhengi, discovered in China's Early Cretaceous Jehol Biota, sheds light on the early evolution of birds. The species is basal to dominant Mesozoic avian clades and represents a new avialan lineage.
Researchers analyzed the oldest known penguin fossil and found no significant changes in brain structure compared to modern penguins. The study suggests that becoming flightless did not directly impact brain anatomy, contradicting previous assumptions.
Flies use their halteres to navigate challenging situations, including flying and climbing. The study found that some species rely on the organs to sense their movement in space and maintain visual focus.
Research challenges scientific beliefs that wing shape is primarily determined by flight style, finding that ancestry plays a more significant role. The study analyzed wing geometry across major bird groups and found varying wing shapes within closely related species.
Researchers studied three species of songbirds crossing the Gulf of Mexico, finding they use weather and body fat to assess migration risk. The findings can help protect migrating birds by identifying high-quality habitats along their routes.
A new study of a 125-million-year-old bird fossil from central Spain reveals intricate wing structures that match those of modern birds, supporting the idea that early birds could fly efficiently. The discovery provides key insights into the evolution of avian flight and sheds light on the capabilities of ancient birds.
A 125-million-year-old bird fossil from Spain provides a unique glimpse into the anatomy of early bird flight. The discovery supports the notion that some ancient birds were capable of aerodynamic feats similar to those of modern birds.
Losing feathers at the wrong time can significantly impact a bird's ability to fly long distances due to increased drag and reduced wing area. The study suggests that migratory birds may need more energy and make additional stopovers if they depart prematurely before fully moulted.
Two University of Oklahoma doctoral students have developed a technique to forecast the orientation behavior of birds as they migrate through the atmosphere at night using the nation's weather radar network. The approach has discovered broad-scale flight orientation of nocturnal migrant birds, offering a promising development for biolo...
Researchers discovered that chestnut-crowned babbler birds can rearrange meaningless sounds to create new meanings, similar to human language formation. This finding suggests a potential early step in the evolution of complex language systems.
A study published in Scientific Reports reveals that birds like magpies utilize a tiny vortex formed at the alula feathers tip to improve flight maneuverability. The researchers observed this phenomenon through wind tunnel experiments, demonstrating how the vortex helps air flow attach to the wing surface.
Researchers found that birds adopt only two stereotyped postures to navigate through cluttered environments at high speed. These postures allow birds to minimize energy loss and maximize robustness during flight. The study's findings may offer new insights into programming drones and UAVs to avoid obstacles.
Researchers tracked tiny birds with tracking backpacks and found they flew directly over the Atlantic Ocean to reach their wintering grounds in South America. The birds took 2-3 days to complete the journey, storing up fat reserves to fuel their flight.
Researchers found that neighboring birds sang at significantly different rates than non-neighboring birds, according to a study published in PLOS ONE. Great tits use their songs to signal territory boundaries, and the study suggests that neighborhood structure may shape variation in territorial birdsong.
Research reveals that the variety and adaptability of interlocking protein building blocks make up the feather's success. Birds have dozens of smaller variations within each type of brick, represented by the many differing copy numbers in their gene.
A new study by Oxford University scientists reveals that migrating birds 'share the pain' of leading a v-formation, allowing them to take turns saving energy. The research found that individual birds spend an average of 32% of their time benefiting from flying in the updraft produced by another bird's flapping wings.
Researchers studied bar-headed geese's migratory biology during high-altitude flights across the Tibetan Plateau, revealing a unique 'roller coaster' flight strategy. The birds employ this strategy to track underlying terrain and minimize energy expenditure due to decreasing air density and oxygen availability at high altitudes.
A major study has charted the burst of evolution that took place after the mass extinction of dinosaurs, giving rise to nearly all modern bird species. The research found that birdsong evolved independently at least twice, with parrots and songbirds gaining the ability to learn and mimic vocal activity.
University of British Columbia researchers found that hummingbirds lose positional stability when exposed to moving visual patterns, even with prolonged exposure or combination of moving and stationary stimuli. This discovery highlights the complex relationship between a hummingbird's visual field and its ability to hover in place.