CAMDEN, Del. (AP) — Thousands of chicks found abandoned inside a postal service truck for three days have gone to new homes, according to the Delaware shelter that had cared for them, with the last batch picked up on Thursday morning.

A Delaware animal shelter is trying to care for and rehome thousands of chicks that survived being left in a postal service truck for three days. Trapped in a warm enclosure, without food and water, thousands died before they were discovered on May 2, CBS affiliate WBOC reported.

The chicks were left abandoned due to a "misdirected" shipment, according to the Delaware Department of Agriculture.