Results 71 to 80 of about 3,444 (214)

Almost Seven Decades of Coastal Bird Community Recovery Across Three European Seas

open access: yesGlobal Change Biology, Volume 31, Issue 11, November 2025.
Our study examined long‐term trends in coastal bird communities across three European seas from 1957 to 2024. We found that bird abundance and diversity have increased over time, although these improvements vary among regions and sites. Protected areas—particularly strictly protected ones—play an important role in supporting these recoveries, but ...
Carlos Cano‐Barbacil   +10 more
wiley   +1 more source

Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information

open access: yes, 2020
Members of a social species need to make appropriate decisions about who, how, and when to interact with others in their group. However, it has been difficult for researchers to detect the inputs to these decisions and, in particular, how much ...
DeDeo, Simon   +2 more
core  

Molecular Survey of Chlamydial Infections in Three Public Bird Collections in Tehran, Iran

open access: yesVeterinary Medicine and Science, Volume 11, Issue 5, September 2025.
One hundred and eight samples from different avian species were collected and tested for Chlamydia spp. infection using PCR. Thirty‐seven samples from Psittaciformes, Columbiformes, Falconiformes, Galliformes and Charadriiformes were positive for Chlamydia DNA.
Seyed Mohamad Mahdi Hashemian   +2 more
wiley   +1 more source

Restoration of sea eagle population: A review

open access: yesCurrent Zoology, 2009
The population density of the white-tailed sea eagle Haliaeetus albicilla is very low in many countries. In last twenty years, the sea eagle population in South Bohemia was restored by strict protection subsidized by reintroduction.
Josef RAJCHARD   +1 more
doaj  

Presència de l'àguila marina Haliaeetus Albicilla (Linnaeus 1758) al jaciment espeleològic quaternari d'es Pouàs [PDF]

open access: yes
[cat] Es presenten les restes d'Àguila marina Haliaeetus albicilla obtengudes al jaciment d'Es Pouas, Eivissa. Aquesta espècie ha estat extirpada de I'ornitofauna eivissenca rera l'arribada de I'home. Es trobava al cim de la piràmide tròfica de
Alcover, Josep Antoni, McMinn, Miguel
core  

L'avifaune de l'habitat fortifié Chalcolitique de Leceia (Oeiras, Portugal) [PDF]

open access: yes, 1995
As escavações conduzidas em Leceia por um de nós (J. L. C.), em continuidade desde 1983, permitiram a recolha de um copioso conjunto de artefactos e de ecofactos, cujo estudo se encontra em curso.
Cardoso, João Luís, Gourichon, L.
core  

The Predatory Bird Monitoring Scheme (PBMS) Report 2006-7 [PDF]

open access: yes, 2010
The Predatory Bird Monitoring Scheme (PBMS) examines the levels of certain pollutants in selected wildlife species in Britain. It started in the 1960s to assess the impact of organochlorine pesticides on raptor populations, and the scheme is now the ...
Lawlor, A.J.   +7 more
core  

Results of Work of the Raptor Ringing Center of the Russian Raptor Research and Conservation Network in 2018

open access: yesПернатые хищники и их охрана, 2019
In 2018, atotal of 30 ornithologists and birdwatchers participated in the work of the RaptorRingingCenterof the Russian Raptor Research and Conservation Network and ringed 615 individuals of 24 species of Birds of Prey and Owls.
Elvira G. Nikolenko   +10 more
doaj   +1 more source

Food of the white‐tailed eagle Haliaeetus albicilla in Greenland

open access: yesEcography, 1983
Six nests of white‐tailed eagles in the southernmost Greenland were watched during the nestling period and food items recorded photographically by remote controlled cameras. The species composition of the food was representative even for the adult eagles' diet. Fish made up a major part of 90%, various bird species and arctic fox pups the remaining 10%.
Frank Wille, Kaj Kampp
openaire   +1 more source

Influence of the vegetation structure on the nest-site selection of birds of prey in the March floodplain forests, Lower Austria [PDF]

open access: yes, 2012
Zwischen Januar und Juli 2008 wurden im March-Auwald zwischen Hohenau und Drösing im niederösterreichischen Bezirk Gänserndorf (19,7 km2) systematisch Greifvogelhorste kartiert, und auf Besetzung und Bruterfolg kontrolliert.
Krenn, Harald W.   +2 more
core  

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