Investigating information seeking in ravens (Corvus corax) [PDF]
Animal Cognition, 2020 AbstractMeasuring the responses of non-human animals to situations of uncertainty is thought to shed light on an animal’s metacognitive processes; namely, whether they monitor their own knowledge states. For example, when presented with a foraging task, great apes and macaques selectively seek information about the location of a food item when they ...
Megan L. Lambert, Mathias Osvath
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Avian cerebellar floccular fossa size is not a proxy for flying ability in birds [PDF]
, 2013 Extinct animal behavior has often been inferred from qualitative assessments of relative brain region size in fossil endocranial casts. For instance, flight capability in pterosaurs and early birds has been inferred from the relative size of the ...
Abel, Richard L. +8 more
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Nest occupation and prey grabbing by saker falcon (Falco cherrug) on power lines in the province of Vojvodina (Serbia) [PDF]
, 2008 Research on nest occupation and prey grabbing by saker falcon (Falco cherrug) on power lines in Vojvodina (Serbia) was done in the period from 1986 to 2004.
Puzović S.
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Threat-sensitive anti-predator defence in precocial wader, the northern lapwing Vanellus vanellus [PDF]
, 2016 Birds exhibit various forms of anti-predator behaviours to avoid reproductive failure, with mobbing—observation, approach and usually harassment of a predator—being one of the most commonly observed. Here, we investigate patterns of temporal variation in
A Amar +97 more
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Investigation of mirror-self recognition in ravens (Corvus corax).
Journal of Comparative Psychology, 2022 Large-brained birds, such as corvids and parrots, tend to fail tests for self-recognition (mirror self-recognition [MSR]), but the limited positive evidence for MSR in these species has been questioned due to methodological limitations. In the present study, we aimed to investigate MSR in ravens by performing three mirror tests: a mirror exposure test,
Baciadonna, Luigi +4 more
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The use of referential gestures in ravens (Corvus corax) in the wild [PDF]
Nature Communications, 2011 Around the age of one year, human children start to use gestures to coordinate attention towards a social partner and an object of mutual interest. These referential gestures have been suggested as the foundation to engage in language, and have so far only been observed in great apes.
Pika, S., Bugnyar, T.
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Partner Choice in Raven (Corvus corax) Cooperation
PLOS ONE, 2016 Although social animals frequently make decisions about when or with whom to cooperate, little is known about the underlying mechanisms of partner choice. Most previous studies compared different dyads' performances, though did not allow an actual choice among partners.
Asakawa-Haas, Kenji +3 more
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The Corvids Literature Database - 500 years of ornithological research from a crow’s perspective [PDF]
, 2016 Corvids (Corvidae) play a major role in ornithological research. Because of their worldwide distribution, diversity and adaptiveness, they have been studied extensively.
Droege, Gabriele, Töpfer, Till
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Social networks predict selective observation and information spread in ravens [PDF]
, 2016 Animals are predicted to selectively observe and learn from the conspecifics with whom they share social connections. Yet, hardly anything is known about the role of different connections in observation and learning.
Bugnyar, T +5 more
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The temporal dependence of exploration on neotic style in birds [PDF]
, 2017 Exploration (interacting with objects to gain information) and neophobia (avoiding novelty) are considered independent traits shaped by the socio-ecology of a given species.
Auersperg, Alice +7 more
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