Cockatrice

Small Monstrosity, Unaligned

AC 11     Initiative +1 (11)
HP 22 (5d6 + 5)
Speed 20 ft., Fly 40 ft.

Ability Scores
STR 6 (−2) Save −2    DEX 12 (+1) Save +1    CON 12 (+1) Save +1
INT 2 (−4) Save −4    WIS 13 (+1) Save +1    CHA 5 (−3) Save −3

Immunities Petrified
Senses Darkvision 60 ft.; Passive Perception 11
Languages None
CR 1/2 (XP 100; PB +2)

Actions
Petrifying Bite. Melee Attack Roll: +3, reach 5 ft. Hit: 3 (1d4 + 1) Piercing damage. If the target is a creature, it is subjected to the following effect. Constitution Saving Throw: DC 11.
First Failure: The target has the Restrained condition. The target repeats the save at the end of its next turn if it is still Restrained, ending the effect on itself on a success.
Second Failure: The target has the Petrified condition, instead of the Restrained condition, for 24 hours.