How flexible is tool use in Eurasian jays (Garrulus glandarius)?

Datasets and statistical analyses (R scripts) of a study on tool use in Eurasian jays. Three object-dropping experiments were conducted. Experiment 1 and 2 investigated whether jays could select functional tools (tool selectivity) according to their physical properties, respectively size and shape. Experiment 3 explored jays’ capability of using different tools – sticks – to acquire food for the same apparatus.