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rsbl20160649_si_002.mp4 (43.66 MB)

Supplementary Video of the Group Service Test from Proactive prosociality in a cooperatively breeding corvid, the azure-winged magpie (Cyanopica cyana)

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posted on 2016-10-12, 10:38 authored by Lisa Horn, Clara Scheer, Thomas Bugnyar, Jorg J. M. Massen
Supplementary video illustrating how the birds operated the apparatus in the group service test (phase IV). The video is shot from the side, showing the receiving side (position 1) in the foreground

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    Biology Letters

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