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scienceMar 24, 20261:43failed

How a Bird Came to Look Like a Caterpillar

BirdNote Daily

About this episode

The Cinereous Mourner is a small, ashy-gray bird that lives in the forest understory of the Amazon Basin. And it’s taking mimicry to the next level: when viewed from above, lying alone in its cup-shaped nest, its chick is a near match to a highly toxic caterpillar — one that snakes and monkeys won’t eat. The chick even waves its head like a caterpillar, increasing the illusion.

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This episode is brought to you by Wild Delight Bird Food, which aims to support wild bird populations with clean, nutritious ingredients in every blend. Available at Chewy.com.  

More info and transcript at BirdNote.org.

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How a Bird Came to Look Like a Caterpillar

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