Itching Chicken

My chicken is itching
My chicken is scratching
A serious illness
He tells us it's catching

In place of a cluck
He has a sharp cough
His body and face
Are covered in spots

He's feeling discomfort
A permanent tickle
He's picking and licking
And in such a pickle

He's rubbing his beak
He nibbles his claws
He pecks at his wings
He rolls round the floor

He's irritated
Sweaty and hot
The vet says my chicken...
Has got chicken pox