SOMERSET, Pa. (AP) — Henrietta the chicken was living inconspicuously among 36,000 other birds at Brendle Farms for 18 months — until a foreman noticed she had four legs.
"It's as healthy as the rest," the farm's owner, Mark Brendle, told The Daily American.

Brendle's 13-year-old daughter, Ashley, named the chicken Henrietta after the discovery Thursday. The bird has two normal front legs and, behind those, two more feet. They are of a similar size to her front legs but don't function. The chicken drags her extra feet behind her.

In 30 years of farming, Brendle said, he's never before seen a chicken with four legs.

http://www.usatoday.com/news/offbeat/2006-09-23-chicken_x.htm