uncommon n huge animal 

Krougriaror Wastes mutated giant bats (Bestiary 39)

Perception +16; echolocation (precise) [object Object] feet, low-light vision

Skills Acrobatics +13, Athletics +13, Stealth +13

Str +5 Dex +2 Con +4 Int -4 Wis +4 Cha -2

Echolocation A bat can use its hearing as a precise sense at the listed range.

AC  22; Fort +13, Ref +12, Will +11

HP 75

Wing Thrash [R] Trigger An adjacent enemy damages the mutant bat; Effect The bat makes one or two wing Strikes—one against the triggering creature and one against another adjacent creature.

Speed 15 feet, fly 30 feet

Melee [>] fangs +14, Damage 2d10+7 slashing

Ranged [>] wing +14 (agile), Damage 2d8+7 piercing

OoA3, page 22.