This "incubation call" contains a special note that will later serve as a password. When the chicks have hatched, this password enables the adult birds to identify their babies in the darkness of their domed nest.
This "incubation call" contains a special note that will later serve as a password.
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When the chicks have hatched, this password enables the adult birds to identify their babies in the darkness of their domed nest.
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This "incubation call" contains a special note that will later serve as a password. When the chicks have hatched, this password enables the adult birds to identify their babies in the darkness of their domed nest. A species of Australian cuckoo lays its eggs in the wren's nest, hoping to pawn off the task of parenting.
Superb Fairy-wrens teach their embryonic chicks a secret code. Sign up for BirdNote+ to get ad-free listening and other perks.
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