Ring-necked and monk parakeets introduced to European cities from Asia and South America are subject to lethal control despite being sentient, social birds.
Lethal control of invasive parakeets involves welfare harms for intelligent, social birds capable of forming pair bonds and recognizing individual humans. Non-lethal approaches including reproductive control, egg replacement, and habitat modification can reduce population growth with fewer welfare costs. Where lethal control is deemed necessary, methods ensuring rapid death minimize suffering.