How do cuckoos trick other birds?

Cuckoos are masters of deception. When it comes to raising their young, these birds don’t need to build a nest, protect their eggs or feed their offspring. Instead, female cuckoos pass these roles onto unsuspecting victims. 

Cuckoos are brood parasites, meaning they don’t raise their own young. They lay their eggs in the nests of other bird species, according to the Max Planck Society in Germany, tricking other birds into thinking the cuckoo eggs are theirs. Some of the main targets for cuckoos include dunnocks (Prunella modularis), meadow pipits (Anthus pratensis) and reed warblers (Acrocephalus scirpaceus), researchers reported in 2009 in the journal Bird Study

How do they do it?

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