It wasnarrated from Ibn 'Umar that the Messenger of Allah (ﷺ)said:
"There are five animals, for which there is no sin on a personifhe kills them" – or he said: "if he kills them when in Ihram –thescorpion, the crow, the kite, the mouse and the vicious dog."
English reference: Vol. 4, Book 25, Hadith 3088
Arabic reference: Book 25, Hadith 3207