Articles tagged with Birds
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A nearly complete skeleton of a new extinct pheasant species from China preserves the oldest evidence of modified vocalization sounds. The fossil features an extremely long and coiled trachea, similar to those found in birds with louder, lower-frequency songs.
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.
A new study by San Francisco State University researchers finds that alarm-calling bird species promote the ability of other species to use risky parts of the forest, bringing together species that normally flock on their own. By creating a safe zone from predators, these birds maintain biodiversity in the rainforest.
Researchers from the University of Chicago and University of Nebraska discovered that Australian fairy-wrens can recognize individual birds from other species and form stable, positive relationships. This cooperation allows them to better defend their territories and share benefits such as increased foraging success and reduced vigilance.
A new study measures regional job creation due to native predators' regulating services, finding that American kestrels can save farmers up to $357 of cherries per dollar spent on nest boxes. Building these boxes is estimated to generate 46 to 50 jobs and over $2 million in increased revenue for Michigan's economy.
Researchers found that jackdaws respond to unique calls from fellow colony members and non-colony birds, but not female strangers. The size of the mob is influenced by caller characteristics and sex, highlighting individual bird discrimination.
A new universal formula for determining species is presented to address the issue of identifying distinct populations as separate or subspecies. The formula uses statistical tests to measure differences between non-co-occurring and co-occurring populations, providing a more objective approach to taxonomy.
Researchers warn that Alaska's songbird population may suffer significant losses if the invasive common cuckoo and oriental cuckoo expands its breeding range in the region. The cuckoos, known as brood parasites, lay their eggs in nests of other species, leading to the elimination of reproductive success for hosts.
American University researchers have identified the first gene of the germline-restricted chromosome (GRC) in the zebra finch, a crucial step in understanding sex determination in birds. The discovery of GRC α-SNAP, a SNAP family gene crucial to membrane fusion, suggests potential functions and directions for follow-up experiments.
A study published in Scientific Reports found that focusing solely on a species' rarity or economic impact can lead to an underestimation of its true value. Considering multiple values, such as cultural significance and economic importance, reveals that every species plays a crucial role in society.
Researchers found that malaria-carrying parasites, particularly Plasmodium, are more widespread due to their ability to infect multiple bird species. The study's findings suggest that geography and host evolutionary relationships play significant roles in shaping parasite diversity and distribution patterns.
A study published in Ecosphere found that native birds can successfully nest in non-native plants in altered ecosystems, challenging traditional views on habitat restoration. The research suggests that controlling non-native plants may not yield benefits for all nesting bird species.
A new study from the University of Illinois provides video evidence of parental infanticide in dickcissel birds, challenging existing assumptions about this phenomenon. The researchers observed a female parent removing her own chick from the nest, raising questions about the ecological and evolutionary implications.
A new bird-of-paradise species, Vogelkop Superb Bird-of-Paradise, has been confirmed due to its distinct dance movements and vocalizations. The species was found only in the far-western region of New Guinea.
Research by the University of Exeter and the British Trust for Ornithology found that people in crowded urban areas see fewer songbirds but more nuisance birds. In contrast, green and leafy suburbs have up to three and a half times more songbirds and woodpeckers, associated with positive human wellbeing.
Scientists are creating a comprehensive evolutionary tree of over 10,000 bird species using cutting-edge technologies and public data release. The OpenWings project will provide unparalleled insights into avian diversity and evolution.
Research reveals that green roof species arrive by hitching lifts on birds or riding air currents, underscoring the importance of adapting soil biology to these environments. The study recommends improving soil engineering to ensure long-term sustainability and encourages further research to connect green roofs to ground-level soils.
A recent study found that vertebrates are essential pollinators for many plants, including crops like dragon fruit and durian. The study revealed that the exclusion of bat pollinators resulted in an 83% drop in fruit production, highlighting the importance of these animals in plant reproduction.
A study published in PLOS ONE found that US National Parks are essential for bird conservation in a changing climate. By 2041-2070, the average park is expected to support 29% more species in winter and 6% more species in summer.
A study found that restoring Putah Creek in California increased the bird population by twice as much, with more common riparian birds visiting in increasing numbers. The restoration also improved the ecosystem's function and had benefits beyond the water's edge.
Research in Botswana finds high levels of lead in African vultures, linked to hunting activity, with conservation efforts urging a national ban on lead bullets and awareness among policymakers.
A nearly complete skeleton of a 250-65 million year old chick fossil provides insight into the bone development and evolutionary diversification of birds. The study suggests that early bird developmental strategies may have been more diverse than previously thought, with some species relying heavily on parental care.
Researchers found that attracting birds and other vertebrates to agricultural areas reduces pest damage and increases crop yields. Studies show that these natural pest control methods can be effective in reducing pesticide use and improving the environment.
Researchers found that golden-winged warblers from declining populations spend winters in northern South America, while stable populations spend winters in Central America. This strong link between breeding and non-breeding areas suggests that tropical habitats may be crucial for the species' survival.
Biologist Jeff Podos will teach at two Brazilian institutions and study birds that communicate vocally in unusual ways, using audio and video recordings to describe their habitat and behavior. He aims to understand adaptations for long-distance song transmission and how bird morphology influences song production.
Despite centuries of assumption, a systematic literature review reveals no evidence that water birds transfer fish eggs into isolated bodies of water. The majority of experts surveyed found the theory plausible, but empirical evidence is lacking.
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.
Researchers at the University of Chicago have discovered that birds and primates share similar brain cell types linked to cognitive abilities, such as goal-directed behaviors. This finding suggests that these species may have evolved intelligence independently, despite their distinct anatomical structures.
A recent study by Oregon State University researchers found that old-growth forests in Costa Rica's Coto Brus region have a greater variety of bird species compared to second-growth forests. This suggests that maintaining large areas of primary forest is crucial for conservation efforts.
Researchers found that varied burning regimes increase the variety of bird and mammal species in wet savannas, allowing geographically rare birds to coexist with more common species. This study suggests that fire can be an effective tool for promoting biodiversity in conservation areas.
Researchers have reconstructed a pre-human New Zealand ecosystem using coprolites from extinct giant moa and kakapo parrot, revealing insights into the birds' diet, pathogens, and behavior. The study sheds light on the critical ecosystem function of giant birds in dispersing mushrooms and fungi, now lost due to their extinction.
A study published in Scientific Reports found that dominant male Long-billed Hermits have better spatial memories and sing more consistent songs than less successful males. This advantage allows them to defend their singing perches and attract females, highlighting the importance of cognitive abilities in animal behavior.
Researchers found that individual great spotted woodpeckers can be distinguished by unique drumming patterns, including stroke speed and roll duration. Drumming also signals the quality of potential mates, as it requires well-developed back and neck muscles.
Researchers at the University of Cambridge discovered that schooling fish groups exhibit different collective behaviors, with some showing better coordination and leadership than others. The study found that individual group members differ consistently in their behavior, influencing group performance and survival.
A new study reveals that songbirds can 'see' reference to certain vocalizations, enabling them to perceive an inanimate object as a real snake. This cognitive ability allows birds to efficiently search out a predator regardless of its spatial position.
A new study reveals that birds have advanced their breeding time, laying eggs on fields still to be sown, increasing the risk of nest destruction. This mismatch is likely fatal for bird nests, highlighting the need for conservation efforts and effective schemes like Agri-environment schemes.
A study found that warm waters and algae growth are associated with an increase in botulism-related bird deaths on Lake Michigan. The researchers used satellite data to monitor environmental conditions and found a correlation between warmer waters and higher levels of algae, which can lead to the growth of toxin-producing bacteria.
A study published in PNAS found that constant noise from oil and gas operations can cause physiological stress in birds, leading to reduced egg hatching rates and stunted chick growth. The research also showed that species previously thought to be tolerant of noise were actually most affected.
Researchers found that young male songbirds can overcome their genetic predisposition to sing like their fathers with enriched early experience. The study used Bengalese finches and found that exposure to a computerized tutor or live adult males reduced the genetic contribution to complex behaviors like birdsong.
Scientists have identified the world's first hybrid bird species in the Amazon rainforest, created by the mating of two distinct species. The golden-crowned manakin boasts unique yellow crown feathers and an intermediate keratin structure, setting it apart from its parental species.
A study of zebra finches found that when young birds mimic sounds they've memorized, neural activity increases in specific brain regions. This process may hold the key to understanding how humans learn complex behaviors like speech and precise movements.
Researchers studied great tit birds and found they learned to avoid brightly colored, distasteful prey after observing another bird's reaction. This social learning process, known as 'social transmission,' helps explain how conspicuous colors evolved in insects.
A single Black-backed Oriole bird's arrival in rural Pennsylvania attracted over 1,800 birders from across the US and Canada, generating an estimated $223,851 for the local economy. The study reveals that ecotourism events can have a substantial impact on the economy through travel, food, and accommodation costs.
Researchers are using a high-tech approach to study the relationship between crow calls and their behavior, hoping to uncover the meaning behind their loud cawing. By analyzing audio recordings of the birds' vocalizations, they aim to gain insights into bird communication and behavior.
Researchers found that pigeons process space and time in ways similar to humans and other primates, using a common neural coding mechanism. This suggests that abstract concepts are not processed separately and that lower-order animal species can exhibit high-level decision-making abilities.
A study by the University of Adelaide validated the latest climate change models forecasting bird impacts, showing they accurately predict range shifts over the past 40 years. The models now provide a more effective tool for targeting conservation management resources.
Finches learn to adjust their songs depending on the situation they are in, with two distinct brain regions involved in this process: one for generalizable rules and another that can override them. This study provides insights into how humans learn complex behaviors like language and movement disorders.
Researchers found that young, managed forests cause higher stress levels and lower survival rates in willow tits due to reduced food availability and increased predation risks. About 92% of the birds sheltering in older trees survived the winter, compared to nearly 73% in younger plantations.
Researchers found that California birds are breeding five to 12 days earlier than a century ago, producing eggs and young at lower temperatures. This adaptation allows birds to avoid the negative effects of climate warming.
A study found that California bird species are shifting their breeding dates to remain in preferred temperature zones. By nesting earlier, they reduce the need for range shifts and conserve thermal niches.
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.
Researchers found that Hawaiian birds timed their breeding and molting with the availability of specific flowers, which in turn was linked to heavier rainfall periods. This suggests that climate changes can cascade up the food chain and affect wildlife abundance.
A pilot study analyzing over 1,100 hours of birdsong reveals insights into the spread and diversity of bird species on Okinawa island. The research uses acoustic monitoring to track the influence of human activity on endemic species such as the Okinawa Rail and Ruddy Kingfisher.
Scientists used remote acoustic monitoring to track bird activity on Okinawa, finding more animal sounds in less developed areas. The study also confirmed that human-caused noise can be disruptive for birds.
A study using American dippers found that run-of-river dams can cause a spike in methylmercury levels due to reservoir formation and temperature increases. However, no significant differences were observed between regulated and unregulated streams in terms of mercury levels.
Researchers found that songbirds break down the complex task of learning a new song into manageable parts, using a strategy similar to computer algorithms. This approach allows them to adapt their songs with minimal effort and expand their repertoire.
Margaret C. Crofoot receives a prestigious Alexander von Humboldt Professorship worth five million euros to further Collective Behaviour research at the University of Konstanz. The professorship aims to create a cutting-edge international research facility, bringing together experts from various fields.
A recent study by Sjouke Kingma found that birds help other birds of the same species care for their offspring in exchange for future benefits, such as inheriting territory or creating an army of little helpers. This behavior challenges the traditional view that all creatures are selfish and maximizing their own reproductive success.
A study by University of Illinois ornithologist Mike Ward found that 85% of Canada geese wintered in the Greater Chicago Metropolitan Area, with none making foraging flights to agricultural fields. The birds' ability to minimize risk by using urban areas suggests they are prioritizing survival over energy intake.
A new species of manakin bird was discovered in Peru by analyzing its distinct song. The newly identified species, Machaeropterus eckelberryi, differs from local subspecies and shares similarities with Venezuelan tepuis birds.