Musnad Ahmad 1217:1

'Affan narrated to us, he said: Abu 'Awanah narrated to us, he said: Zayd ibn Jubayr narrated to us, and a man asked him—meaning Ibn 'Umar—about what the one in the state of Ihram may kill of animals. He said: One of the wives of the Messenger of Allah (peace and blessings of Allah be upon him) informed me that he ordered the killing of the mouse, the scorpion, the vicious dog, the kite, and the crow.