The correlation between coloration and exploration behaviour varies across hierarchical levels in a wild passerine bird.

Abstract excerpt

In vertebrates, darker individuals are often found to be more active and willing to take risks (representing characteristics of a 'proactive' coping style), whereas lighter individuals are instead more cautious and less active (representing characteristics of a 'reactive' coping style). It is thus generally expected that melanin-based coloration and proactivity form a suite of positively integrated traits at the...

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