In the Nun's Priest's Tale, there is a poor and simple widow who lives with her daughters; in her farmyard there are a lot of animals, but her cock, Chantecleer, is the best and proudest cockerel that has ever lived. He's very handsome and he has got seven wives, but his favourite one is Lady Pertelot.
One night, just before the sun rises, Chantecleer starts to scream: he tells his wife to have dreamt that a horrible monster wanted to eat him. He thinks his dream comes from God. Pertelot replies that dreams are only the result of eating too much and she suggests him to go to the chemist and to get some medicine for his stomach.
Chantecleer doesn't trust her and he tells a story to prove that dreams come true.
“Once, two pilgrims, who were looking for a place to stay in town, had to sleep in separate inns, because of the great crowd. During the night, one of the men dreamt about his friend who told him that some thieves had murdered him to steal his money and that they had hidden his body in a dung cart to the west gate of the city. After the dream, the man went back to sleep; but when he went to meet his friend to the other inn, the following morning, and he didn't find there, then he ran to the place whose his friend had told him in his dream and he found his body right there.”
With these words, Chantecleer forgives his dream and flies down into the yard to gebin his crowing. But there's a sly fox who's hiding like a murderer, waiting.
Suddenly, just as Chantecleer sees her, he runs away; then the fox tells him to be his great admirer and that she likes to hear him sing. So, while the proud bird is preparing to sing and he's closing his eyes, the fox catches him by the neck and begins to run off towards the forest.
All the animals in the yard scream and try to stop the fox.
Then, Chantecleer speaks to the fox and congratulates with her, because no one can catch her. He suggests her to turn and shout at the stupid people that they could never have catched her. So, as soon as the fox opens her mouth to say this, Chantecleer flies high into the trees; he is safe now, and the fox understands to have been very fool.