Results 31 to 40 of about 374 (126)

A Helicopter Survey for Cliff-Nesting Raptors Along the Dalton Highway in Northern Alaska, 2010

Birds
We conducted a helicopter survey in 2010 for cliff-nesting raptors along the Dalton Highway in northern Alaska. The study area extended from the Yukon River northward ~395 km through the Brooks Range to the Arctic Plain.
Erica H. Craig, Jim D. Herriges, Tim H. Craig   +2 more
doaj   +1 more source

Absence of negative effect of GPS‐tags on survival and breeding success in a long‐lived territorial raptor

Ibis, Volume 167, Issue 4, Page 1053-1064, October 2025.
GPS tracking has enabled significant advances in the study of animal movements such as migration and habitat use. However, GPS devices can affect the behaviour of tagged individuals, especially for flying animals such as birds, and may ultimately impair their reproduction and/or survival.
Lise Viollat, Roger Pradel, Cécile Ponchon, Alain Ravayrol, Alexandre Millon, Aurélien Besnard   +5 more
wiley   +1 more source

Avian influenza overview June–September 2025

EFSA Journal, Volume 23, Issue 10, October 2025.
Abstract Between 7 June and 5 September 2025, 183 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (27) and wild (156) birds across 15 countries in Europe. Although HPAI A(H5N1) virus detections were predominant in western and southwestern Europe, they also occurred on the northernmost coast of Norway. More than
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Leonidas Alexakis, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Miguel Melo, Lisa Kohnle   +16 more
wiley   +1 more source

Bone Mineral Density of Willow Ptarmigan (Lagopus lagopus) as a Potential Taphonomic Factor in Skeletal Part Attrition

International Journal of Osteoarchaeology, Volume 35, Issue 5, Page 284-294, September/October 2025.
ABSTRACT Agents of taphonomy can bias skeletal parts and the frequency of bones in archaeological sites. An important factor to consider is the possible effect of bone density‐mediated attrition on archaeornithological assemblages. We scanned willow ptarmigan (Lagopus lagopus) specimens using a Lunar iDXA and an enCcore small animal body add‐on to ...
Frank J. Dirrigl Jr., Samuel R. Buchanan   +1 more
wiley   +1 more source

Climatic variation affects seasonal survival of an alpine bird species

Wildlife Biology, Volume 2025, Issue 4, July 2025.
Mountains are particularly exposed to climate change, and empirical studies have shown that montane bird species are highly sensitive to the ongoing changes. Modelling mortality risks under climatic variation will give insight into species‐specific sensitivity. Willow ptarmigan Lagopus l.
Lasse Frost Eriksen, Thor Harald Ringsby, Markus F. Israelsen, Pål F. Moa, Vidar Grøtan, Erlend B. Nilsen   +5 more
wiley   +1 more source

Avian influenza overview March–June 2025

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract Between 8 March and 6 June 2025, 365 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (167) and wild (198) birds across 24 countries in Europe. HPAI A(H5N1) virus detections were predominant and mainly located in western, central and south‐eastern Europe.
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Leonidas Alexakis, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Gražina Mirinavičiūtė, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Miguel Melo, Lisa Kohnle   +16 more
wiley   +1 more source

No support for solar radiation as a major evolutionary driver of malar stripes in falcons

Journal of Avian Biology, Volume 2025, Issue 3, May 2025.
The malar stripes of falcons (Falco spp.) are often hypothesised to function by reducing the amount of solar glare reflected into the falcon's eyes while hunting, thereby aiding foraging efficiency in bright conditions. This ‘solar glare hypothesis' is supported by intraspecific trends in peregrine falcons Falco peregrinus, in which populations ...
Michelle Vrettos, Chevonne Reynolds, Arjun Amar   +2 more
wiley   +1 more source

Keystone effects of prairie dogs (Cynomys spp.) on grassland birds: Current knowledge and future directions

Conservation Science and Practice, Volume 7, Issue 4, April 2025.
This article reviews the literature on how prairie dogs as keystone species affect grassland birds, an imperiled avian community. We tested hypotheses and synthesized conclusions from the literature, and then we identified key knowledge gaps to be filled with future work.
R. Andrew Dreelin, Andy J. Boyce, Holly P. Jones   +2 more
wiley   +1 more source

Avian influenza overview December 2024–March 2025

EFSA Journal, Volume 23, Issue 4, April 2025.
Abstract Between 7 December 2024 and 7 March 2025, 743 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (239) and wild (504) birds across 31 countries in Europe. HPAI A(H5N1) virus detections were predominant and mainly located in central, western and south‐eastern Europe.
European Food Safety Authority, European Centre for Disease Prevention and Control, European Union Reference Laboratory for Avian Influenza, Leonidas Alexakis, Hubert Buczkowski, Mariette Ducatez, Alice Fusaro, Jose L. Gonzales, Thijs Kuiken, Karl Ståhl, Christoph Staubach, Olov Svartström, Calogero Terregino, Katriina Willgert, Miguel Melo, Lisa Kohnle   +15 more
wiley   +1 more source

Contraband of Falcons

Пернатые хищники и их охрана, 2018
On September 23, 2017, at the Dzhankoy Automobile Border-crossing Point at the Russian-Ukrainian border in the Republic of Crimea, the officers of the Crimean Customs together with the officers of the Federal Security Service Directorate stopped the ...
Igor V. Karyakin, Elvira G. Nikolenko
doaj   +2 more sources