The last several decades of research on avian cognition have revealed surprising parallels
between the abilities of birds—most notably corvids—and great apes. Parrots, albeit far less …

Patterns of individual differences in cognition have been studied empirically and
systematically in the last decade, but causes and consequences of this variation are still …

Parrots are the most traded birds internationally, mainly to be used as companion pets,
which threatens the global biodiversity. Using the large dataset derived from the Convention …

Play behaviour and tool using in birds, two well-delineated and amply researched
behaviours, have generally been associated with cognitive abilities. In this study, these …

As an increasing number of researchers investigate the cognitive abilities of an ever‐wider
range of animals, animal cognition is currently among the most exciting fields within animal …

The midsession reversal paradigm confronts an animal with a two-choice discrimination task
where the reward contingencies are reversed at the midpoint of the session. Species react to …

Contrafreeloading is the choice to perform a physical task to access food over freely
available food, a behavior pattern contrary to the predictions of both optimal foraging and …

This editorial provides an overview of the current special issue of Behavioural Processes. In
the current special issue, the authors address the research gap on individual differences in …

Problem solving is important for survival, allowing animals to access novel food resources or
escape from predators. It was originally thought to rely on an animal's intelligence; however …

People form enduring emotional bonds with other animal species, such as dogs, cats, and
horses. For the most part, these are domesticated animals, with one notable exception …