There are five beasts, all of them are vicious and harmful and there is no sin for one who kills them (and these are): scorpion, crow, kite, rat and voracious dog.
حَفْصَةُ زَوْجُ النَّبِيِّ ﷺ قَالَ رَسُولُ اللَّهِ ﷺ خَمْسٌ مِنَ الدَّوَابِّ كُلُّهَا فَاسِقٌ لاَ حَرَجَ عَلَى مَنْ قَتَلَهُنَّ الْعَقْرَبُ وَالْغُرَابُ وَالْحِدَأَةُ وَالْفَارَةُ وَالْكَلْبُ الْعَقُورُ