The flightless terror bird stands nearly ten feet tall atop two immensely powerful legs. Its plumage ranges from dark russet or brown to bright green.

Pack Hunters.

The terror birds live and hunt in packs of ten to twelve individuals. They are clever hunters, drawing their prey into positions that allow the birds to flank. Their attacks are done with blazing speed and ferocity, removing limbs in a flurry of lacerating bites.

Fortress Nests.

Terror birds live in woods or copses of trees, where they assemble walls made of branches around large nests. The nests have several ways in and out, and creatures without the terror bird’s long legs find navigating the nests difficult. Several adults stay behind to guard the eggs and nest while the rest go out hunting.

Mounts for Plains Tribes.

Tribes of dust goblins, hobgoblins, humans, and even gnolls have been known to capture terror birds for use as mounts in battle.

Terror Bird

Large beast, unaligned

Armor Class 12 (natural armor)

Hit Points 65 (10d8 + 20) 10d8+20

Speed 50ft

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STR

18 +4

DEX

12 +1

CON

14 +2

INT

3 -4

WIS

12 +1

CHA

10 0

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Skills Athletics +6, Perception +3

Senses darkvision 60 ft., passive Perception 13

Challenge 2

Pack Tactics. The terror bird has advantage on attack rolls against a creature if at least one of the bird’s allies is within 5 feet of the creature and the ally isn’t incapacitated.
Passing Bite. Terror birds who move at least 20 feet straight toward a target have advantage on the next attack roll against that target.

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Actions

Serrated Beak. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 14 (3d6 + 4) 3d6+4 slashing damage. The target must succeed on a DC 12 Constitution saving throw or take 7 (2d6) 2d6 slashing damage at the beginning of its next turn.