Fairy-wrens learn alarm calls of other species just by listening

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Birds often eavesdrop on the alarm calls of other species, making it possible for them to take advantage of many eyes looking out for danger. Now, researchers have found that fairy-wrens can learn those unfamiliar calls -- which they liken to a foreign language -- even without ever seeing the bird that made the call or the predator that provoked it.
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Fairy-wrens learn alarm calls of other species just by listening was originally posted by Health Nutrition And Fitness News