Articles tagged with Bird Flight
Researchers at Lund University found that migratory bats' efficiency in converting energy into muscle power increases with flight speed. The study, published in Proceedings of the Royal Society B, used high-speed cameras and laser measurements to compare kinetic energy with metabolism.
Research reveals that urban bird species are generally smaller, less territorial, and have greater ability to fly long distances. They also have broader dietary and habitat niches, lay more eggs at a time, live longer, and inhabit wider elevations compared to other species.
Scientists at UMass Amherst found that migrating birds burn high amounts of protein early in their flights, which then taper off as the duration increases. This discovery challenges previous assumptions about bird migration and fuels further research into the evolution of metabolism.
The new CALANGO software helps untangle genetic factors associated with shared characteristics, such as antibacterial resistance and agricultural improvements. It enables scientists to explore vast amounts of genomic data across thousands of organisms.
Scientists have discovered how sandgrouse hold water in their feathers, enabling males to fly long distances and retain enough water for chicks. The unique feather structure uses capillary action to absorb and retain water.
A research team from Germany, Austria, Canada, and the USA analyzed Troodon eggshells using a new method, revealing that they were produced at temperatures of 42°C and 30°C. The findings suggest that Troodon females laid eggs in communal nests, similar to modern ostriches.
Researchers investigated how seabird flight characteristics vary among different species in response to cyclone-strength winds. Birds living in windier environments are faster fliers, while tropical species use strategies to cope with extreme events. Some albatrosses even avoid strong winds by flying into the eye of the storm.
Researchers found that seabird species have unique wind tolerance strategies, with some flying fast to counteract wind drift. Albatrosses can fly in most storm conditions, while tropical species use special avoidance tactics.
Researchers at the University of Tokyo found that a specialized wing structure called the propatagium evolved in non-avian dinosaurs, paving the way for modern birds to fly. The discovery, based on statistical analyses of arm joints, helps fill gaps in knowledge about bird flight origins.
Assistant Professor Samik Bhattacharya is studying bird wing morphing to engineer stable solutions for unmanned aerial vehicles and micro air vehicles. His research could lead to improved control during airflow disturbances, reducing anxiety for pilots.
Researchers at the University of East Anglia found that the Bahama Warbler may only survive on Abaco island after Hurricane Dorian devastated its forest habitat on Grand Bahama. The study, published in Bird Conservation International, reveals that the bird prefers areas with taller, more mature trees and can adapt to burnt vegetation.
Scientists at Nagoya University developed an index to estimate a bird's wing use based on coracoid bone strength and body mass. This new tool sheds light on how ancient birds evolved to fly, including the flapping abilities of extinct species.
Researchers at Lund University identified two areas in the genome that decide whether a willow warbler migrates across the Iberian Peninsula or the Balkans. This discovery sheds light on the genetics behind songbirds' migratory behaviour and has implications for understanding how species adapt to climate change.
Researchers created a robotic wing that can flap more efficiently than previous robots, mimicking the upstroke of birds. This study could lead to more efficient flapping drones for various applications, including deliveries.
Researchers tracked puffins with tracking devices, revealing they lose flying ability during 1-2 month molting period, making them vulnerable to severe weather conditions. The study suggests this timing is significant as climate change increases winter cyclones in the North Atlantic.
Great gray owls have a broad disc-like face that acts as radar to find food, while their facial features help correct for sonic distortions caused by snow. The owls' ability to hover above prey allows them to pinpoint location and avoid acoustic mirages created by the snow.
A new study reveals that standard goose harassment efforts are ineffective, especially in winter when birds should be most susceptible to scare tactics. Canada geese return to their territories despite harassment, prioritizing access to resources over energy conservation. The research team found that geese adapt to urban environments, ...
Wild geese in Germany, Denmark, and the Netherlands experience significant changes in their behavior after fireworks, including flying further and foraging more, even after the disturbances end. The effects persist for up to two weeks, with birds leaving their sleeping sites and flying hundreds of kilometers non-stop.
Researchers have discovered that the flight patterns of birds can be used to estimate fine-scale environmental conditions and turbulence levels. The team measured bird altitude and motion using GPS and data loggers attached to pigeons, finding a correlation between the birds' behavior and turbulence strength.
Researchers found pelagic seabirds fly into the eye of a storm to reduce risk of injury or death. The birds' unique flight style allows them to navigate strong winds.
Research on white-necked jacobin hummingbirds found that about 20% of females retain male-like plumage into adulthood, engaging in deceptive mimicry to avoid aggression and increase access to food sources. These females' strength and body size are similar to those of males.
A new study reveals how gulls adjust their wings to control stability in the air, employing wing morphing to respond to gusts and turbulence. The findings have implications for designing more agile drones and aircraft with improved maneuverability.
Researchers observed Swainson's Hawks hunting a dense colony of Mexican Free-tailed Bats using cameras to reconstruct 3D flight trajectories. The study found that hawks steer towards a fixed point within the swarm instead of targeting individual bats, suggesting a new mechanism for efficient prey capture.
Hawks use a unique flight path to slow down to a safe speed while minimizing the distance from the perch at which they stall. This allows them to control their landings effectively, even when slowing down risks stall, leading to sudden loss of flight control.
Researchers found that zebra finches' short vocalizations during flight are followed by an upward movement of the calling bird, which helps other birds observe its position. The birds also use vision to coordinate horizontal position changes, such as brief shoulder checks, to avoid collisions.
A new study reveals that population declines have been greatest among species that migrate to areas with more human infrastructure, habitat degradation, and climate change. The research identified 16 human-induced threats to migratory birds, including infrastructure associated with bird disturbance and collisions.
A new study reveals that Manx shearwaters use dynamic soaring to harvest wind energy and travel efficiently across the ocean. The birds' ability to adapt their flight patterns to optimize energy gain suggests a potentially game-changing strategy for drones and other aerial vehicles.
Researchers found that hummingbirds experience a 37% drop in metabolic rate and become torpid for longer periods at high elevations, making it unlikely they can relocate to higher altitudes. The birds' physiological response suggests lower oxygen availability and low air pressure may be difficult challenges to overcome.
A study of nomadic pine siskins found that pairing with settled male birds triggered signs of ending migration, including reduced restless flying and body mass loss. This suggests that social cues play a role in migratory decisions for unpredictable animals like pine siskins.
A study led by Flinders University reveals that Australia's Letter-winged kite may not have enhanced vision for nighttime hunting as previously thought. The research found similar eye dimensions to its daytime-hunting relatives, contradicting decades of speculation about the kite's visual system.
Researchers found that noisy jackdaws use a 'democratic' decision-making process to coordinate their daily takeoffs, relying on the intensity of calls to achieve consensus. The findings suggest that changes in calling intensity serve as a reliable source of information for synchronization.
A team of researchers found that jackdaws use a form of 'consensus decision-making' to decide when to leave their roosts en masse. By combining recorded calls with tests in which pre-recorded calls were played, the team discovered that birds effectively 'cast a vote' through calling out to reach a consensus.
Researchers from Nagoya University found that Quetzalcoatlus was not suited for soaring flight due to its large wing loading. The study suggests that the Quetzalcoatlus's thermal soaring abilities were below those of modern birds, contrary to previous assumptions.
New research from Washington University in St. Louis shows that crows and ravens' diverse traits enabled their rapid global expansion. Their intelligence allowed them to adapt to new environments, while their big bodies gave them a competitive advantage.
Researchers used GPS data from 65 bird tracking studies to identify areas where migrating birds are more sensitive to onshore wind turbine or power line development. These 'collision hotspots' are concentrated along important migration routes, coastlines, and near breeding locations in Europe and North Africa.
Researchers found that black swifts rise to extreme heights at night during a full moon, reaching altitudes of up to 4000 meters. During a lunar eclipse, the birds simultaneously lost altitude, suggesting moonlight plays a crucial role in their flight dynamics.
A study by UMass Amherst researchers reveals a negative correlation between birds' ability to fly and their willingness to fight. The findings suggest that developing wings instead of bony spurs was driven by both sexual and natural selection, leading to the remarkable diversity of bird species we see today.
Researchers found that migratory birds, such as bar-tailed godwits and whimbrels, can fly for up to 9 days at a time, more efficiently than previously thought. The birds also demonstrate exceptional meteorological knowledge, adapting their routes to weather systems over long distances.
Researchers found that eastern whip-poor-wills from the Midwest breed in a small area of Oklahoma, Arkansas, and east Texas before migrating to Mexico and Central America. The birds' synchronized trip south poses a danger to their population, which has declined by nearly 70% due to habitat loss and urban bird collisions.
Researchers used owl wing characteristics to inform airfoil designs and significantly reduce trailing-edge noise in aeronautical and turbine engines. The study found that asymmetric serrations reduced noise more than their symmetric counterparts.
Researchers found that migratory bird species tend to be lighter colored than non-migratory species, reducing the risk of overheating during extreme journeys. The study's findings suggest that lighter plumage coloration helps birds absorb less heat and stay cooler in the hot sun.
Researchers developed a perching robot inspired by birds, called SNAG, which can fly around, catch objects, and land on different surfaces. The robot's design mimics the legs of a peregrine falcon, allowing it to absorb impact energy and convert it into grasping force.
Researchers used GLS tracking data to study sooty terns' migration patterns, showing they range up to 2,900 km from breeding colonies and cover 47,000 km during an eight-month migratory period. The largest breeding population of terns is on Ascension Island, which was designated a Marine Protection Area in 2019.
Researchers found that males and females have different heat-sensing systems, which may be related to reproduction and offspring care. This difference leads to segregation between the sexes at certain periods during breeding cycles.
Scientists discovered a fossil bird with elaborate tail feathers, showing how natural and sexual selection influenced bird evolution. The discovery sheds light on the balance between traits that aid survival and those used for display.
Researchers tracked five species of large land birds flying nonstop over the open ocean, exploiting wind and uplift conditions to save energy. The study reveals that many land birds rely on atmospheric support to complete their migrations, making them vulnerable to climate change.
Researchers at Texas A&M University applied the methods of globally recognized free-flight trainer Chris Biro to establish new bird flocks in the wild. The trained birds learned to recognize natural dangers, forage for food, and navigate their environment, paving the way for parrot conservation.
A study by Per Henningsson of Lund University found that birds adapt their speed to navigate through narrow gaps, slowing down as they approach the smallest opening. However, this adaptation comes with a significant energy cost, requiring extra energy to fly at sub-optimal speeds and increasing wing beats.
Researchers found that birds do not develop an unhealthy reliance on human-provided food when fed during winter. The study used radio frequency identification tags and measured feeder visits by black-capped chickadees, finding no increase in dependence on supplemental feed.
A team of researchers used phylogenetics to investigate recurrent adaptations in bird mitochondria, finding that most convergence events can be explained by random coincidences rather than adaptation. The study confirms the scientific opinion that distant species choose different ways of similar trait evolution, but challenges the idea...
A University of Michigan-led research team found that birds are migrating earlier, but their bodies have been getting smaller and wings longer. The study used museum specimens from bird collisions in Chicago to analyze long-term trends in bird migration timing.
A Cornell University-led study reveals that birds can use turbulence to their advantage, offering a potential boost to the aerospace industry. The research found that birds' accelerations are highly irregular and fluctuating, similar to particles in turbulent airflows, allowing them to harness energy from wind speed.
A recent study by Hebrew University researchers identified molecular factors that allow birds to fly, differing from mammals and reptiles. The ephrin-B3 molecule plays a crucial role in coordinating wing movement, enabling birds to flap and take flight.
Great reed warblers migrate at high altitudes during day to avoid heat, contradicting typical nocturnal behavior. Researchers tracked birds using data loggers, finding they flew up to 5400 meters at dawn.
Great reed warblers climb to record-breaking daytime cruising altitudes of up to 6,200 meters when crossing the Mediterranean Sea and Sahara Desert. This previously unknown behavior may help explain the evolution of nocturnal migration in migratory birds.
A researcher from the University of Malaga challenges a 2020 study suggesting powered flight may have evolved independently in non-avian dinosaurs. New data analysis by Francisco Serrano and Luis M. Chiappe refutes this hypothesis, stating that current evidence does not support it.
Researchers at UC San Diego have developed a theoretical model explaining how pelicans exploit wind updrafts from breaking waves to conserve energy during flight. This discovery has potential applications in drone control and weather forecasting, highlighting the intricate dance between ocean, wind, and bird behavior.
Researchers found that wing tags severely impair Cape Vultures' flight performance, causing them to travel shorter distances and fly slower. Leg bands are a less invasive alternative for marking individuals, prompting a shift towards this method in vulture conservation.
A study reveals three distinct periods of rapid species diversification in birds, linked to key adaptations for flight and diet. These events are influenced by long-term climate changes and the Cretaceous-Paleogene mass extinction event.
Researchers studied Himalayan songbirds and found that those living at higher elevations have more fluffy down feathers than lower-elevation birds. Smaller-bodied birds with longer feathers in proportion to their body size also tend to have thicker insulation.