DC Public Library System

Cuckoo, cheating by nature, Nick Davies ; with field drawings by James McCallum

eng

Includes bibliographical references (pages [259]-273) and index

platesillustrations

index present

non fiction

Cuckoo

bibliography

881092849

Nick Davies ; with field drawings by James McCallum

cheating by nature

How does the cuckoo get away with laying its eggs in the nests of other birds and tricking them into raising young cuckoos rather than their own offspring? Early observers who noticed a little warbler feeding a monstrously large cuckoo chick concluded the cuckoo's lack of parental care was the result of faulty design by the Creator, and that the hosts chose to help the poor cuckoo. These quaint views of bad design and benevolence were banished after Charles Darwin proposed that the cuckoo tricks the hosts in an evolutionary battle, where hosts evolve better defenses against cuckoos and cuckoos, in turn, evolve better trickery to outwit the hosts. For the last three decades, Davies has employed observation and field experiments to unravel the details of this evolutionary "arms race" between cuckoos and their hosts. Like a detective, Davies and his colleagues studied adult cuckoo behavior, cuckoo egg markings, and cuckoo chick begging calls to discover exactly how cuckoos trick their hosts

A cuckoo in the nest -- How the cuckoo lays her egg -- Wicked fen -- Harbinger of spring -- Playing cuckoo -- An arms race with eggs -- Signatures and forgeries -- A cheat in various guises -- a strange and odious instinct -- Begging tricks -- Choosing hosts -- An entangled bank -- Cuckoos in decline -- A changing world