An Act designating the passenger pigeon (Ectopistes migratorius) as the official extinct species of the Commonwealth of Pennsylvania.

HB 400 designates the passenger pigeon (*Ectopistes migratorius*) as Pennsylvania's official extinct species, with no direct impact on individuals or regulations. The bill's sole provision, in Section 2, formally establishes this designation through state law. It includes historical findings about the passenger pigeon's former abundance in Pennsylvania and its role in raising awareness about species preservation. The law takes effect immediately upon enactment.