Sydney boy charged for 'torturing chicken'

A second boy has been charged after pet chickens were tortured and killed at a Sydney preschool.

The 12-year-old was one of two boys captured on CCTV footage allegedly breaking into a chicken coop at the Little Learning School in Ambarvale on Saturday.

"(They) tormented our beloved pets and brutally cornered and stomped on one until it stopped moving," an employee at the preschool said in a Facebook post.

The boys hurled rocks and sticks at the remaining chicken before taking off with one, she said.

Police said the boys allegedly killed the chicken and stole another.

One of them was arrested soon after, while the second boy turned himself in to Campbelltown police station on Tuesday.

He was charged with several offences including beating and causing the death of an animal and was granted conditional bail to appear at a children's court on March 21.

His alleged accomplice, also aged 12, remains before the courts over the incident.