From YahooNews: 

Extra rear ends New Zealand’s four-legged chicken

WELLINGTON, New Zeland (AFP) - Forzie, the four-legged chicken hatched in New Zealand last month, has died, and it appears it was an extra anus rather than the extra legs which led to its death.

“He developed two bottoms and I think he got glugged up,” said owner Marlene Dickey.

Dickey said she was surprised by Forzie’s death, as he was slowly gaining feathers.

“He was a bit of a laugh,” she said.

(more here)