NPCs composing that spawngroup :

enraged_ravener (100%)

NPCs spawning around that spawngroup :
(Max range : 100)

kaesora_strathbone_healer9, range=32 (335,-65,3)

strathbone_healer (100%)

kaesora_skeletal_minion71, range=46 (297,-113,-146)

skeletal_minion (50%)
skeletal_minion (50%)

kaesora_skeletal_guardian31, range=84 (402,-38,-173)

skeletal_guardian (50%)
skeletal_guardian (50%)

kaesora_222706, range=80 (264,-74,3)

a_frenzied_gnawer (25%)
strathbone_healer (75%)

kaesora_222718, range=66 (297,-147,-123)