Terror BirdCreature 2
Perception +6 (low light vision)
Languages none
Skills Acrobatics +7, Athletics +8
Str +4, Dex +3, Con +3, Int -4, Wis +0, Cha +0
AC 17; Fort +11; Reflex +9; Will +4;
HP 30
Speed 50 feet
Beak
+9 (+4, -1) to hit (reach 10) 1d8+4 PiercingTalon
+9 (+5, +1) to hit (agile) 1d6+4 PiercingSprint

Frequency once per minute
Effect The terror bird Strides three times in a straight line
Tearing ClutchThe terror bird's powerful beak can tear through flesh. On a successful beak Strike, the target takes 1 persistent bleed damage. This bleed damage increases to 1d4 on a critical hit.
Knockdown
Requirements The monster's last action was a successful Strike that lists Knockdown in its damage entry
Effect The monster attempts to [/act trip] the creature. This attempt neither applies nor counts toward the monster's multiple attack penalty.
Common terror birds are notable hunters. On their own, they use their great speed to catch prey unaware. In a flock, they can swarm and take down larger beasts like aurochs with their overwhelming numbers.
Terror birds aren't one species, but rather a family of deadly, flightless avian predators. All terror birds are capable of bursts of great speed and have powerful beaks that can tear apart the flesh of their prey. Most stalk large, open prairies and steppes, competing directly with other sizable predators such as big cats and wolves.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
AnimalAn animal is a creature with a relatively low intelligence. It typically doesn't have an Intelligence attribute modifier over –4, can't speak languages, and can't be trained in Intelligence-based skills.