Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: There are five animals whose killing incurs no sin, whether the killer is in the Haram or in the state of Ihram: (1) the mouse, (2) the kite, (3) the crow, (4) the scorpion, (5) the biting dog. In Ibn Hashim’s narration, the words "in the sacred and non-sacred area" are mentioned.