Yahya related to me from Malik from Hisham ibn Urwa from hisfather that the Messenger of Allah, may Allah bless him and grant himpeace, said, "There are five trespassers that can be killed in theHaram:
rats and mice, scorpions, crows, kites and wild dogs."
USC-MSA web (English) reference: Book 20, Hadith 91
Arabic reference: Book 20, Hadith 793