Multiattack

The kobold makes three Spear or Shortbow attacks.

Spear

Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 11 (2d6 + 4) piercing damage, or 13 (2d8 + 4) piercing damage if used with two hands to make a melee attack.

Shortbow

Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 7 (2d6) poison damage, and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Inspiring Shriek (Recharge after Short or Long Rest)

The kobold chieftain shrieks a draconic battle cry. Each creature that isn't a dragonborn or kobold within 30 feet of the chieftain must succeed on a DC 14 Wisdom saving throw or be frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.