Seabirds
Articles tagged with Seabirds
Scientists reveal the secrets behind the penguin waddle and underwater “flight”
Researchers uncovered previously unknown features in the limb musculature of the macaroni penguin that help explain its efficient movement on land and underwater. The study found modified key wing muscles and a unique configuration of shoulder muscles giving penguins an 'underwater flying' wing stroke.
Seabirds reveal global mercury distribution in oceans
A recent study analyzed blood samples from over 11,000 seabirds worldwide to estimate oceanic mercury distribution. The analysis found that mercury levels vary according to prey trophic level, bird body weight, and foraging depth, with distinct regional patterns of contamination.
40 migratory animal species receive new or upgraded protection at close of UN meeting in Brazil
Parties to the Convention on Migratory Species agree to list 40 additional species on Appendices I and II, including iconic species like cheetahs, hyenas, and great hammerhead sharks. The agreement also includes multi-species conservation plans for key regions like the Amazon.
New UN-backed atlas maps migratory lifelines of highly vulnerable bird species across the americas
The Americas Flyways Atlas charts critical habitats spanning 56 countries, revealing key breeding, stopover, and wintering sites for 89 highly vulnerable migratory bird species. The atlas provides governments with a blueprint to protect these birds from habitat loss, infrastructure, and climate change.
Seabirds as architects of the landscape
Seabirds have a significant impact on plant growth and dune formation on uninhabited islands, with guano providing essential nutrients. The research highlights the importance of protecting seabird habitats to maintain ecosystem balance.
Share of migratory wild animal species with declining populations despite UN treaty protections worsens from 44% to 49% in two years; 24% face extinction, up 2%
The interim update to the State of the World's Migratory Species report warns that 49% of migratory species populations are declining, with 24% facing extinction, due to habitat loss and overexploitation. The report highlights the need for coordinated international action to address these threats and protect migratory species.
Bird poop powered the rise of the Chincha Kingdom, archaeologists find
A new study reveals that seabird guano was a driving force behind the Chincha Kingdom's sociopolitical expansion on Peru's coast. The nutrient-rich bird droppings boosted corn yields and supercharged agriculture, fueling the kingdom's economy, trade, population growth, and regional influence.
Seabirds ingest large quantities of pollutants, some of which have been banned for decades
A recent study analyzed seabird carcasses and blood from six species in Brazil, finding similar concentrations of persistent organic pollutants (POPs) among species with different diets. The researchers discovered that the great shearwater had the highest levels of PCBs and mirex, possibly due to its migratory routes and feeding habits.
H5N1 causes die-off of Antarctic skuas, a seabird
The high pathogenicity avian influenza virus H5N1 has caused the death of over 50 skuas in Antarctica, marking the first documented case of wildlife mortality due to the virus on the continent. The study found that the virus was primarily affecting the South Shetland Islands and Antarctic Peninsula.
Are returning Pumas putting Patagonian Penguins at risk? New study reveals the likelihood
A new study reveals that more than 7,000 adult Magellanic penguins were killed by pumas in just four years, posing a significant threat to the penguin population. The research suggests that high puma predation rates could exacerbate reproductive decline and juvenile mortality, ultimately putting the colony at risk of extinction.
Marine pollutants disrupt cellular energy production in seabirds
Research found that widespread contaminants like mercury and certain PFAS compounds affect the function of mitochondria in wild seabirds, potentially undermining fitness. The study measured pollutant levels and mitochondrial function in Scopoli's shearwaters and connected diet to exposure through stable isotopes.
A two-week leap in breeding: Antarctic penguins’ striking climate adaptation
A decade-long study found that Antarctic penguin species are adapting to a changing environment by advancing their breeding seasons. Gentoo penguins showed the greatest change, with an average advance of 13 days per decade, making them vulnerable to declining food availability and ecosystem collapse.
Study links seabird nesting to shark turf wars in Hawai‘i
A new study reveals that seasonal seabird nesting concentrates tiger sharks in specific areas, forcing other species to shift their habitat use to avoid predation. The presence of fledgling seabirds influences the behavior of apex predators, including gray reef and Galapagos sharks.
Penguins starved to death en masse, study warns, as some populations off South Africa estimated to have fallen 95% in just eight years
Penguin populations off South Africa have declined drastically due to collapsing food supplies, with some species facing an estimated 62,000 breeding individual losses. The study suggests that sardine biomass has fallen below a quarter of its peak levels in 17 years, posing a significant threat to the long-term survival of these birds.
Shouting at seagulls could stop them stealing your food
Researchers found that nearly half of gulls exposed to shouting voices flew away within a minute, while only 15% responded to speaking voices. The study used recordings of male voices at the same volume and adjusted for acoustic properties.
New study overturns long-held assumptions about how plants spread to islands
A new study from Iceland's Surtsey island reveals that birds played a crucial role in colonizing the island by carrying seeds in their guts or droppings. This challenges traditional beliefs about plant dispersal, highlighting the importance of bird-animal interactions in shaping ecosystems.
Contrasting conservation outlooks for NZ crested penguins
A study on three Aotearoa New Zealand crested penguin species reveals tawaki are thriving with strong genetic health, while erect-crested and Eastern rockhopper penguins face uncertain futures. The research highlights the urgent need to address conservation challenges for these subantarctic species.
Seabirds only poop while flying
Researchers discovered seabirds, like streaked shearwaters, drop feces every 4-10 minutes while flying to avoid fouling feathers and attracting predators. This unique habit may help the birds stay clean and fertilize the ocean below with nutrient-rich droppings.
On-board camera footage offers bird’s eye glimpse into seabird flights and feeding behaviour
Researchers captured unique footage of Indian Ocean seabirds catching flying fish in mid-air using lightweight cameras. The study showed that these birds exploit windy conditions to conserve energy while hunting, suggesting a possible adaptation to patchy food sources.
Magellanic penguins may use currents to conserve energy on long journeys
Researchers found that Magellanic penguins alternate between traveling in direct routes and swimming with the flow of strong currents to maximize navigation efficiency. By doing so, they conserve energy while maintaining accurate headings towards their colonies.
How a bubbly barrier could be life-saving for plunging boobies
Researchers are investigating whether boobies create a protective 'bubbly barrier' to reduce the impact of their high-speed dives. Preliminary findings suggest that supercavitation may indeed help mitigate the forces of impact, and further experiments are planned to confirm this effect.
Eliminating invasive rats may restore the flow of nutrients across food chain networks in Seychelles
A study suggests that eliminating invasive rats can restore the flow of nutrients across food chain networks in Seychelles, potentially enhancing ecosystem function on coral reefs. Seabird populations play a mediating role in this process by increasing turf algae growth and stimulating top-down controls.
Plastics may trigger hormone disruption in seabirds, new study finds
A new study published in Environmental Pollution found that plastic ingested by northern fulmars can leak chemicals that interfere with the birds' hormone systems. The chemicals, such as BPA and phthalates, can impair fertility, development, and behavior, posing a significant threat to species survival.
For the first time, all avian evolutionary relationships revealed
Researchers at the Cornell Lab of Ornithology have created a complete evolutionary tree of bird species by combining data on 9,239 species. The resulting database can be easily shared and updated as new studies are published.
Wind energy and marine wildlife in conflict: researchers warn of the overlap between offshore wind farms and areas of high biodiversity
A study reveals widespread overlap between feeding grounds for seabirds, marine mammals, and regions with high wind potential. Researchers propose developing risk maps to predict conflicts and recommend expanding marine protected areas and strengthening spatial planning tools.
Could new project result in more harmonious future for humans and kittiwakes?
A groundbreaking research project is exploring the unique role of kittiwakes in urban ecology, aiming to establish a governance framework that promotes harmonious coexistence between humans and wildlife. The study will employ various tools, including machine learning and GIS, to assess the impacts of urban development on biodiversity.
Surveys show full scale of massive die-off of common murres following the ‘warm blob’ in the Pacific Ocean
A new study estimates that 4 million Alaska common murres died following the 'warm blob', a marine heat wave that impacted ocean productivity and food supply. The die-off had devastating effects on seabird populations, with colony sizes dropping by half in some areas.
New model can help understand coexistence in nature
Researchers at Uppsala University developed a mathematical model to understand how seabird species coexist on isolated islands. The model shows that different species use distinct fishing zones, maximizing energy intake based on traits like wing length and diving depth.
Washington coast avian flu outbreak devastated Caspian terns, jumped to seals
A 2023 avian flu outbreak in Washington state killed 56% of a large breeding colony of Caspian terns and had significant impacts on the Pacific-coast population. The virus was also transmitted to harbor seals, causing an inflammatory response in their brains.
Artificial nests boost penguin breeding success, but there’s no one-size-fits-all design
A new study found that artificial nests outperform natural nests in boosting African penguin breeding success by 16.5%, but each type of nest has strengths and weaknesses. Colony-specific conservation strategies are needed to address the unique threats faced by each colony.
Highly-sensitive beaks could help albatrosses and penguins find their food
Researchers discovered that seabirds like albatrosses and penguins have sensory receptors and nerves in their beaks that could aid in finding food. This ability might enable the birds to detect tiny vibrations from potential prey, potentially helping conserve these critically endangered species.
‘Food theft’ among seabirds could be transmission point for deadly avian flu
Researchers found that seabirds' food-stealing behavior, known as kleptoparasitism, could be a transmission point for the deadly H5N1 avian flu virus. This behavior involves birds forcing others to regurgitate their prey, potentially spreading the disease through contaminated food items.
Antarctica’s receding sea ice could impact seabirds’ food supply
New research using satellite technology tracks the movement of albatrosses and petrels, finding that they use sea ice-affected parts of the ocean for feeding and scavenging. The study suggests that Antarctica's shrinking sea ice could force seabirds to travel further or alter their food patterns, affecting ecosystems.
Groundbreaking study reveals oceanic seabirds chase tropical cyclones
Researchers discovered that Desertas Petrels follow hurricanes to take advantage of enhanced foraging conditions, where prey accumulates closer to the surface. The birds reduce their flight time and avoid injury by using the storm's wakes as a wind tunnel, providing them with an easy meal.
Restored rat-free islands could support hundreds of thousands more breeding seabirds
Researchers found that removing invasive rats and restoring native vegetation could help bring back hundreds of thousands of breeding pairs of seabirds lost to tropical islands. The restored populations would have enough fish in the sea for them to hunt, supporting nearly 280,000 breeding pairs on islands with full vegetation restoration.
Climate: Increasing tropical cyclone frequency may have deadly consequences for seabird populations
Researchers studied the impact of Cyclone Ilsa on seabird populations on Bedout Island, finding that at least 80% of birds were killed. The study highlights the potential for climate change to have deadly consequences for seabirds, which transport nutrients from the sea to land via their guano.
Arctic nightlife: Seabird colony bursts with sound at night
A study by Hokkaido University and Aarhus University reveals a 'nocturnal' surge in vocalization activity among little auks in Arctic summer, contrary to expectations. The findings provide valuable insights into avian behavior under continuous daylight environments.
Smile for the camera: Asian fishing cats caught snacking on chicks from tree-top nests
Fishing cats were observed raiding bird nests in tall trees for the first time, providing a rare and unusual behavior that sheds light on their ecology. This unexpected finding may help piece together the ecology of these elusive felines and contribute to conservation efforts.
Endangered seabird shows surprising individual flexibility to adapt to climate change
Researchers found that individual Balearic shearwaters are adapting to climate change by shifting their migratory range northwards, with a speed of 25km per year. However, this flexibility comes with constraints, as the birds have further to fly back in the autumn, and the impact on breeding success and survival is still unclear.
Tiny AI-based bio-loggers revealing the interesting bits of a bird’s day
Researchers from Osaka University have developed a small sensor-based data logger that automatically detects and records video of infrequent behaviors in wild seabirds. The bio-logger uses low-power sensors and artificial intelligence to capture rare behaviors, such as head-shaking and foraging habits, without needing human supervision.
A knot’s character is formed in first year of life
Research reveals that red knot characters are formed in the first year of life, shaped by initial experiences in the Wadden Sea. Young birds exhibit more variable behavior and diet, while older birds have consistent food preferences and character types.
Feathered friends can become unlikely helpers for tropical coral reefs facing climate change threat
A new study found that the presence of seabirds on islands adjacent to tropical coral reefs can boost coral growth rates by more than double. Coral reefs near seabird colonies can bounce back much quicker from bleaching events, with recoveries happening around 10 months faster.
Roaming seabirds need ocean-wide protection
New research reveals Indian Ocean seabirds face no hotspots where predators feast on prey, highlighting the need for ocean-wide protection. The study's findings suggest that international action is necessary to safeguard these birds' survival due to human activities like overfishing and pollution.
Rider on the storm: Shearwater seabird catches an 11 hour ride over 1,000 miles in a typhoon
A shearwater seabird was tracked for 11 hours during Typhoon Faxai, covering 1,146 km and reaching speeds of 90-170 km/hr. The bird's remarkable ride highlights the increasing challenge oceangoing birds face in coping with severe storms.
First evidence that albatrosses use infrasound to navigate long journeys
Researchers found that wandering albatrosses orientate towards areas of 'loud' microbarom infrasound when flying on long distance foraging trips. This suggests that they may perceive and respond to microbarom infrasound propagated over long distances.
Seabird couples with similar personalities make better parents
Researchers found that seabird couples with compatible personalities have better parenting success and lower divorce rates. This is because they can make informed decisions together when one parent is away finding food at sea.
Bird study shows Europe’s nature in ‘dire straits’
A recent study by BirdLife International reveals that nearly four in 10 of Europe's bird species are now of conservation concern, including 14% of global concern. The continent's nature is facing an urgent need for comprehensive restoration legislation to halt and reverse the decline in threatened bird species.
Marine heat waves caused mass seabird die-offs, beach surveys show
Researchers used coastal surveys from 1993-2021 to find a dramatic delayed effect of warmer oceans on seabird mortality. Massive die-offs occurred roughly once per decade, with five events exceeding a quarter million birds between 2014 and 2019.
World’s most threatened seabirds visit remote plastic pollution hotspots, study finds
A study has revealed that a quarter of all plastics potentially encountered by petrel species are in remote international waters, posing a significant threat to their survival. The research highlights the need for international cooperation to address plastic pollution in the world's oceans.
Sea of plastic: Mediterranean is the area of the world most at risk for endangered seabirds
A new study reveals the Mediterranean as the area most at risk globally for endangered seabirds, with areas like Portugal's Exclusive Economic Zone also showing considerable risk. Seabirds are already vulnerable or endangered, and plastic exposure worsens their fragile state.
Microplastics are harming gut health
A study by McGill University found that microplastic pollution alters the gut microbiomes of seabirds, increasing pathogens and antibiotic-resistant microbes. The research warns humans to be wary of microplastics in their environment and food, as they can also impact human health.
Avian influenza: new aspects of an old threat
The European Centre for Disease Prevention and Control highlights the rapid spread of avian influenza viruses worldwide, affecting wild bird populations and mammals. The authors warn that human infections with A(H5N1) can be severe and increase the risk of reassortment with mammalian viruses.
Conservation: Red-throated loons avoid North Sea windfarms
New research reveals that offshore wind farms in the North Sea significantly impact red-throated loon populations, with a 94% decline in numbers within a 1km zone. The study suggests that these birds are forced to forage in smaller areas due to restricted movements.
Entire populations of Antarctic seabirds fail to breed due to extreme, climate-change-related snowstorms
Researchers found zero skua nests and almost zero Antarctic petrel and snow petrel nests in regions with significantly higher snowfall than previous years. Extreme snowstorms interfere with the birds' ability to breed, causing tens of thousands of chicks and eggs to die.
Tracking data reveals how seabird species adopt different strategies to cope with extreme storms
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.
Seabirds in 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.
Feathered ‘fingerprints’ reveal potential motivation for migratory patterns of endangered seabirds
Researchers found that the feathers of large seabirds contained nutrients from multiple ocean basins, while smaller birds had elements matching their local foraging environments. This discovery may explain the long-distance migrations of threatened species.
Feather mite species related to the Laysan albatross discovered in Japan
Researchers have identified two new feather mite species associated with the endangered Laysan albatross in Japan. The study provides valuable insights into the ecological dynamics of these parasites and their impact on the bird population. The findings highlight the importance of conservation efforts to protect this species.
Climate ‘presses’ and ‘pulses’ impact Magellanic penguins — a marine predator — with guidance for conservationists
A recent study by University of Washington researchers found that climate 'presses' and 'pulses' have equal importance on Magellanic penguin population survival. The team analyzed nearly four decades of data at Punta Tombo, Argentina, revealing a decline in breeding pairs from 400,000 to 150,000 between the 1980s and 2019.