https://yamcode.com/embrace-th....e-timeless-beauty-of
Species whose broods are parasitised because of the prevalent cuckoo have evolved to discriminate against cuckoo eggs but not chicks.[37] Experiments have demonstrated that prevalent cuckoo chicks persuade their host mother and father to feed them by creating a immediate begging contact that Seems "remarkably like a complete brood of host chicks." The researchers advised that "the cuckoo wants vocal trickery to stimulate enough treatment to compensate for The truth that it presents a visual stimu
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