Results 51 to 60 of about 685 (183)

Avian influenza overview June–September 2025

open access: yesEFSA 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   +16 more
wiley   +1 more source

The Gray Gyrfalcon in Wisconsin

open access: yesThe Auk, 1905
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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

open access: yesInternational 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.   +1 more
wiley   +1 more source

Climatic variation affects seasonal survival of an alpine bird species

open access: yesWildlife 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   +5 more
wiley   +1 more source

Avian influenza overview March–June 2025

open access: yesEFSA 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   +16 more
wiley   +1 more source

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

open access: yesJournal 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   +2 more
wiley   +1 more source

Gyrfalcon in Boyd County, Nebraska

open access: yes, 2016
Gyrfalcon (Falco rusticolus) is considered in Nebraska to be a rare casual winter visitor statewide (Sharpe et al. 2001). Since 1990, there has been only one NOURC (Nebraska Ornithologists\u27 Union Records Committee) accepted record (Class III) for ...
Brogie, Mark A., Heidt, David
core  

Missense SNP of the MC1R gene is associated with plumage variation in the Gyrfalcon (Falco rusticolus)

open access: yes, 2011
A single nucleotide polymorphism (MC1R: c.376A>G) in the MC1R gene was found to be highly correlated with pigment phenotype in the Gyrfalcon. Homozygous genotypes c.376GG and c.376AA were found to dominate the extreme white and dark plumage types ...
M. W. Bruford   +7 more
core   +1 more source

First record of gyrfalcon Falco rusticolus in Korea

open access: yes, 2010
On 20 March 2010, One Gyrfalcon (Falco rusticolus) was observed at Nakdong river, Sangju city, Gyeongsangbukdo province (E128° 14′ 25.6″ N36° 25′ 05.0″), and this is the first record of this species for the Korean peninsula. The Gyrfalcon has distributed
I H Paik   +9 more
core  

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

open access: yesConservation 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   +2 more
wiley   +1 more source

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