Amazonian birds eavesdrop on antshrikes (Thamnomanes ardesiacus) to avoid predation

Neotropical birds can form flocks consisting of multiple species, but the birds that aren’t antshrikes benefit from the presence of these alarm-callers without returning the favor. How would they fare if the antshrikes weren’t around? An experimental study was conducted by Martinez et al. (2018) to determine just how much of an impact antshrikes have on the livelihood of other birds.

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