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After 10,000 years of inbreeding, endangered flightless parrots from New Zealand are in surprisingly good genetic health

Despite 10,000 years of inbreeding, the kākāpō genome sequencing reveals that the species has lost potentially deleterious mutations and now carries fewer harmful mutations than extinct mainland populations. This finding suggests that natural selection may have facilitated genetic purging in small populations.

SourceCell Press·JournalCell Genomics·TypeComputational simulation/modeling·DateSep 8, 2021

The warming climate is causing animals to "shapeshift"

Researchers are studying how climate change is forcing animals to evolve and adapt, with changes in beak and ear sizes reported in birds and tail length increases in mice, experts warn that these changes may have unintended ecological consequences

SourceCell Press·JournalTrends in Ecology & Evolution·TypeLiterature review·DateSep 7, 2021

Bird malaria spreading via global ‘hotspots’

Researchers have identified global hotspots where bird malaria is spreading rapidly, with significant impacts on bird populations. The study found that climate and forest conditions play a crucial role in predicting infection risks, highlighting the need for conservation efforts to protect bird species from this deadly disease.

SourceUniversity of Queensland·JournalGlobal Ecology and Biogeography·DateSep 7, 2021

Baby birds tune in from egg

Researchers at Flinders University found that embryos of three bird species can distinguish between their parents' calls and non-specific sounds, building on complexity of vocal learning. This study paves the way for new insights into evolutionary and developmental timescales.

SourceFlinders University·JournalPhilosophical Transactions of the Royal Society B Biological Sciences·TypeExperimental study·DateSep 5, 2021

Wing shape determines how far birds disperse

Researchers used flight efficiency estimates from museum specimens to predict bird dispersal distances, revealing that species with elongated wings can disperse farther. This study has applications in biodiversity conservation, as reduced flight capabilities may threaten bird populations.

SourceRoyal Ontario Museum·JournalEcology·DateSep 2, 2021

Female hummingbirds avoid harassment by looking as flashy as males

Researchers found that over a quarter of female white-necked Jacobin hummingbirds exhibit showy colors similar to males, aiding in evasion of aggressive behaviors during feeding and mating. This study suggests that the display of flashy colors is driven by social selection rather than sexual selection.

SourceCell Press·JournalCurrent Biology·TypeObservational study·DateAug 26, 2021

Bird communities threatened by urbanization

Research team investigates urbanization's impact on farmland bird communities in Bangalore, India, finding that urbanization homogenizes bird species, eliminating insect-eating birds essential for pest control. The study highlights the importance of preserving biodiversity to maintain ecosystem resilience and food production systems.

SourceUniversity of Göttingen·JournalGlobal Change Biology·TypeObservational study·DateAug 24, 2021

Study identifies patterns in bird-plane collisions

Researchers from Cornell University have identified key factors in bird-plane collisions, including the time of year and species size, to inform collision avoidance strategies. The study predicts that risk for damaging strikes during periods with high migration intensity increases by up to 700%.

SourceCornell University·JournalJournal of Applied Ecology·TypeComputational simulation/modeling·DateAug 19, 2021

Sharing the love helps male acorn woodpeckers father more chicks

A new study finds that male acorn woodpeckers breeding in polygamous groups with one or two other males sire significantly more chicks over their lifetimes than males breeding alone. In contrast, females in polygamous groups leave behind fewer offspring than those in monogamous pairs.

SourceSmithsonian·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateAug 17, 2021

Scientists deploy albatrosses to track plastic pollution

Researchers attached GPS and video cameras to black-footed albatrosses, capturing thousands of video clips across wide swathes of the north Pacific. The imaging showed that debris encountered by the birds included styrofoam, plastic sheets, and fishery netting, suggesting plastic creates a platform for invasive species to spread.

SourceResearch Organization of Information and Systems·JournalScientific Reports·TypeCommentary/editorial·DateAug 10, 2021

World’s biodiversity maps contain many gaps, Yale study finds

A Yale study has identified significant gaps in biodiversity maps, limiting effective conservation decisions globally. The researchers created regional trends maps to assess the distribution of 31,000 terrestrial vertebrates, highlighting opportunities for citizen scientists and government agencies to support biodiversity monitoring.

SourceYale University·JournalPLOS Biology·DateAug 10, 2021

Birds’ eye size reflects habitat and diet, may predict sensitivity to environmental change

A study reveals that birds' eye size reflects their environment, diet, and behavior, providing insights into conservation efforts. The research suggests that larger eyes are associated with closer proximity to the equator and foraging habits near the forest floor.

SourceFlorida Museum of Natural History·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateAug 9, 2021

Toxin sponges may protect poisonous frogs and birds from their own poisons, study suggests

Researchers have discovered that toxic animals produce 'toxin sponges' to mop up deadly toxins and prevent them from binding to vital proteins. This alternative autoresistance strategy may offer a general means of toxin protection, including the development of antidotes against various toxic agents.

SourceRockefeller University Press·JournalJournal of General Physiology·TypeExperimental study·DateAug 5, 2021

Bird brains left other dinosaurs behind

Researchers discovered a rare bird fossil with nearly complete skull, allowing them to compare ancient bird brains to living birds. The study suggests that complex brain structure may have played a key role in the survival of bird ancestors during the mass extinction event.

SourceUniversity of Texas at Austin·JournalScience Advances·TypeImaging analysis·DateJul 30, 2021

Songbirds like it sweet!

Researchers found that songbirds can sense sweetness regardless of their primary diets, with the ability emerging early within the songbird radiation. The team identified the molecular basis of this ability and found that it has been conserved in nearly half of all birds living today.

SourceThe University of Hong Kong·JournalScience·DateJul 12, 2021

What factors put Philippine birds at risk of extinction?

A new study from the University of Utah reveals that more bird species in the Philippines may be endangered than previously thought, including those yet to be discovered. The research identifies key traits that make certain species more at risk of extinction, such as narrow elevation ranges and dependence on forests.

SourceUniversity of Utah·JournalFrontiers in Ecology and the Environment·DateJun 16, 2021

Darkened windows save migrating birds

A new study found that darkening even some windows at night during bird migration periods could reduce bird collisions by 60%. Researchers analyzed data from McCormick Place convention center and found that half of the building's windows being illuminated resulted in 11 times fewer nighttime bird collisions during spring migration.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJun 7, 2021

Duetting songbirds 'mute' the musical mind of their partner to stay in sync

Researchers studied the brain activity of singing male and female plain-tailed wrens, discovering that they synchronize their duets by inhibiting the song-making regions of their partner's brain. This inhibition allows for a seemingly telepathic performance, with the birds becoming a single entity through sensory linkages.

SourceNew Jersey Institute of Technology·JournalProceedings of the National Academy of Sciences·DateMay 31, 2021

From Avocet to Zebra Finch: big data study finds more than 50 billion birds in the world

A new study by the University of New South Wales estimates that there are approximately 50 billion individual birds in the world, with many iconic Australian species falling within this number. However, other rare species like the Black-breasted Buttonquail have only around 100 members left, highlighting the need for conservation efforts.

SourceUniversity of New South Wales·JournalProceedings of the National Academy of Sciences·DateMay 17, 2021

Global abundance of birds

A study examining global occurrences and population estimates for approximately 92% of all extant bird species found that there are approximately 50 billion individual birds in the world. Most bird species are rare, with only a few having estimated global populations of over 1 billion individuals.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateMay 17, 2021

Songbird neurons for advanced cognition mirror the physiology of mammalian counterparts

Researchers identified genetically marked neurons in a zebra finch's forebrain, revealing a landscape of physiology and network roles that mirror those in mammals. This breakthrough advances insight into the fundamental operation of complex brain circuits, suggesting ancient cell types retained features over millions of years.

SourceUniversity of Massachusetts Amherst·JournalCurrent Biology·DateMay 13, 2021

What does the study of domesticated birds tell us about the evolution of human language?

Research suggests that tolerance, cooperation, and reduced aggression in domesticated birds are linked to increased language complexity in humans. The study analyzed genomic, neurobiological differences between domesticated Bengalese finch and its wild relative, finding altered stress hormone balance and brain connectivity patterns.

SourceUniversity of Barcelona·JournalTrends in Cognitive Sciences·DateApr 19, 2021

eBird data used to shape eagle management

A new study uses eBird data to identify areas of low Bald Eagle abundance, paving the way for citizen-science data to shape policy decisions. The research finds that eBird data is the most accurate and reliable source for assessing eagle populations, providing valuable insights for conservation efforts.

SourceCornell University·JournalJournal of Applied Ecology·DateApr 15, 2021

Why lists of worldwide bird species disagree

Researchers compared four main bird species lists worldwide, finding that they agree on most birds but disagree in some regions. The lists differ by application, and some regions are understudied, leading to missed species. This highlights the need for true diversity recognition to conserve biodiversity.

SourceUniversity of Utah·JournalGlobal Ecology and Biogeography·DateApr 7, 2021

Biodiversity is positively related to mental health

A new study by German researchers found that higher species diversity is positively related to mental health, with people living in regions with more plant and bird species reporting better mental well-being. However, the study did not find a significant relationship between biodiversity and physical health.