
On September 10, 1945, farmer Lloyd Olsen of Fruita, Colorado, had his mother-in-law
around for supper and was sent out to the yard by his wife to bring
back a chicken. Olsen chose a five-and-a-half month old cockerel
named Mike, but failed to completely decapitate the bird. The axe
missed the jugular
vein, leaving one ear and most of the brain
stem intact.[3][4]
Despite Olsen's botched handiwork, Mike was still able to
balance on a perch and walk clumsily; he even attempted to preen
and crow, although he could do neither. After the bird did not die,
a surprised Mr. Olsen decided to continue to care permanently for
Mike, feeding him a mixture of milk and water via an eyedropper; he
was also fed small grains of corn. Mike occasionally choked on his
own mucus, which the Olsen family
would clear using a syringe.[citation needed]
When used to his new and unusual center of mass, Mike could
easily get himself to the highest perches without falling. His
crowing, though, was less impressive and consisted of a gurgling
sound made in his throat, leaving him unable to crow at dawn. Mike
also spent his time preening and attempting to peck for food with
his neck.[3]
Being semi-headless did not keep Mike from putting on weight; at
the time of his partial beheading he weighed two and a half pounds,
but at the time of his death this had increased to nearly eight
pounds.

Text taken from wiki.
**strange huh?