Results 91 to 100 of about 7,494 (204)
Avian Conservation and EcologyForest thinning on public lands in the Pacific Northwest USA is an important tool for restoring diversity in forest stands with a legacy of simplified structure from decades of intensive management for timber production. A primary application of thinning
Joan C. Hagar +3 more
doaj +1 more source
CORVID SURVEY TECHNIQUES AND THE RELATIONSHIP BETWEEN CORVID RELATIVE ABUNDANCE AND NEST PREDATION
Journal of Field Ornithology, 2001 Abstract We conducted a four-year study on the Olympic Peninsula of Washington to assess the relationship between corvid (Gray Jay [Perisoreus canadensis], Steller's Jay [Cyanocitta stelleri], American Crow [Corvus brachyrhynchos] and Common Raven [Corvus corax]) abundance and the risk of nest predation. We assessed risk of predation through the use of
John M. Luginbuhl +4 more
openaire +1 more source
Ecological Research, Volume 41, Issue 3, May 2026.We investigated nest predation in the endangered Canarian houbara bustard using 229 artificial nests and camera traps. Ravens were identified as the main predators, and predation rates were influenced by raven density, vegetation cover, stone cover, and road density.
Alberto Ucero +2 more
wiley +1 more source
A working list of meteor streams [PDF]
The list is restricted to meteor streams that do exist; included are six streams with activity near the threshold of detection by photography not related to any known comet and not shown to be active for as long as a ...
Cook, A. F.
core +1 more source
Journal of Anatomy, Volume 248, Issue 5, Page 873-887, May 2026.Psittaciformes exhibit high levels of morphological diversity, particularly in skull and beak structure, previously linked to diet and body size. Although there were some levels of significance between diet and beak shape, body mass was a much stronger co‐variate. Diet is not determining beak shape within the clade.
Shannon L. Harrison +2 more
wiley +1 more source
Urban establishment success of corvids [PDF]
, 2012 Kurzfassung der Dissertation an der Carl von Ossietzky-Universität Oldenburg, Mathematisch-Naturwissenschaftliche Fakultät (2009), angefertigt im Museum für Naturkunde Berlin in Zusammenarbeit mit dem Institut für Vogelforschung "Vogelwarte Helgoland ...
Kulemeyer, Christoph
core
Anthropogenic and Natural Determinants of the Population of a Sensitive Species: Sage Grouse in Nevada [PDF]
This paper uses Nevada data to conduct regression analyses of the relationship between sage grouse (Centrocercus urophasianus) population sizes and potential causal factors.
Alison Eagle +2 more
core
Eye tracking uncovered great apes' ability to anticipate that other individuals will act according to false beliefs [PDF]
, 2017 Financial support came from Ministry of Education, Culture, Sports, Science and Technology (K-CONNEX to FK), Japan Society for Promotion of Science (KAKENHI 26885040, 16K21108 to FK), National Science Foundation (DGE-1106401 to CK), JSPS (KAKENHI ...
Call, Josep +3 more
core +2 more sources
Crow (Corvus spp.) meat: research possibilities to determine nutritional quality and health risks
Nutrimentum et CuraeThere is very limited (if any) literature on the potential use of corvids, specifically crows, as game meat. Despite the worldwide presence of corvids (including crows), especially in urban and other anthropogenic settings, a negative perception of this ...
Jaime A. Teixeira da Silva
doaj +1 more source