An unloader for a poultry inspection and vaccination transporter. The unloader has a horizontally disposed unloader bar that is operable between a carry position, in which the poultry is carried on a hanger of the transporter, and an unload position, in which vertical displacement of the unloader bar between the poultry and the hanger urges the poultry from its suspended position in the hanger to release the poultry from the hanger. The unloader bar may be operated by cooperative engagement of a vertically disposed shaft to which the unloader bar is connected, with an ramp assembly disposed in a traversal path of the transporter.