Cockatrice

Small monstrosity, unaligned
Armor Class 11
Hit Points 27 (6d6 + 6)
Speed 20 ft., fly 40 ft.
STR
6 (-2)
DEX
12 (+1)
CON
12 (+1)
INT
2 (-4)
WIS
13 (+1)
CHA
5 (-3)
Senses darkvision 60 ft., passive Perception 11
Languages
Challenge 1/2 (100 XP)
Actions

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 3 (1d4 + 1) piercing damage, and the target must succeed on a DC 11 Constitution saving throw against being magically petrified. On a failed save, the creature begins to turn to stone and is restrained. It must repeat the saving throw at the end of its next turn. On a success, the effect ends. On a failure, the creature is petrified for 24 hours.

The cockatrice looks like a hideous hybrid of lizard, bird, and bat. It is infamous for its ability to turn flesh to stone.
Monster Manual (SRD)
  1. DnD 5e Monsters › Cockatrice
Cockatrice