'Abdullah bin 'Umar (RA) reported Allah's Messenger (ﷺ) as saying: Five (are the animals) which, if one kills them In the state of Ihram, entail no sin for one (who does it): scorpion, rat, voracious dog, crow and kite.
Hadith ReferenceSahih Muslim / The Book of Pilgrimage / Hadith: 1199