Results 21 to 30 of about 9,157 (204)
Little evidence that Eurasian jays ( Garrulus glandarius ) protect their caches by responding to cues about a conspecific’s desire and visual perspective [PDF]
Acta Zoologica Lituanica, 2021 Abstract When studying local populations of birds in Lithuanian forest islands (Kurlavicius. 1995) relatively big numbers of Eurasian Jay were registered in autumn. It was caused by rich local food resources. Lots of single oaks grow in foresi islands with the yield much greater than in the stands of extensive forests.
Piero Amodio +4 more
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Reasoning by exclusion in food-caching Eurasian jays (Garrulus glandarius) [PDF]
Abstract Two related methods have been widely used to test animals’ capacity to reason by exclusion: Call’s (2004) 2-cups task, where subjects choose between two cups in which one reward was hidden and the empty cup is revealed; and Premack & Premack’s task (1994) where one reward goes in each of the two cups and one reward is ...
Isobelle Hawkins +3 more
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Erratum: The development of support intuitions and object causality in juvenile Eurasian jays (Garrulus glandarius) [PDF]
Scientific Reports, 2017 Scientific Reports 7: Article number: 40062; published online: 05 January 2017; updated: 24 February 2017 This Article contains an error in the Methods section under the subheading ‘Subjects’: “Eurasian jays participated in the study (though see results for samples sizes for each test condition)”. should read:
Gabrielle L. Davidson +4 more
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Erratum to: Tool-use and instrumental learning in the Eurasian jay (Garrulus glandarius) [PDF]
Animal Cognition, 2011 Fig. 1 Models of task performance given different learning heuristics. Boxes marked in white indicate tasks that would be predicted not to be passed or to take significantly longer to pass than boxes marked in black Fig. 9 Pattern of actual task performance.
Lucy G. Cheke +2 more
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Eurasian jays predict the food preferences of their mates [PDF]
Proceedings of the National Academy of Sciences, 2013 The cognitive abilities of animals continue to fascinate both scientists and nonscientists. Although the abilities of the primates, our closest living relatives, generally attract most interest, several different lines of research have demonstrated high levels of intellectual capacity in birds, particularly corvids. The members of this family are known
Alan C. Kamil
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Uncertainty monitoring in Eurasian jays (Garrulus glandarius) [PDF]
Animal CognitionAbstract Metacognition– namely the capacity to reflect on one’s own cognitive processes - provides animals with numerous evolutionary advantages. Metacognition abilities encompass enhanced decision-making in uncertain situations, more efficient resource management, error detection and correction, and improved ...
Maria Loconsole +3 more
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Exploring the perceptual inabilities of Eurasian jays ( Garrulus glandarius ) using magic effects [PDF]
Proceedings of the National Academy of Sciences, 2021 Significance While we know that humans are often deceived by magic effects, little is known concerning how nonhuman animals perceive these intricate techniques of deception. Here, we tested the susceptibility to be misled by three different magic effects on a sample of six Eurasian jays ( Garrulus glandarius
Elias Garcia‐Pelegrin +3 more
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Facing a Clever Predator Demands Clever Responses - Red-Backed Shrikes (Lanius collurio) vs. Eurasian Magpies (Pica pica). [PDF]
PLoS ONE, 2016 Red-backed shrikes (Lanius collurio) behave quite differently towards two common nest predators. While the European jay (Garrulus glandarius) is commonly attacked, in the presence of the Eurasian magpie (Pica pica), shrikes stay fully passive.
Michaela Syrová +4 more
doaj +1 more source
The elusive perspective of a food thief
eLife, 2021 Eurasian jays fail to take into account the point of view and desire of other jays when hiding food they can eat later.
Claudia Zeiträg, Ivo Jacobs
doaj +1 more source
Malaria Journal, 2022 Background Malaria is a health problem not only in human and veterinary medicine, but also in wildlife. Several theoretical studies have suggested that avian malaria transmission might be increasing in Europe.
Gediminas Valkiūnas +2 more
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