NPCs composing that spawngroup :

sonic_bat (33%)

sonic_bat (33%)

sonic_bat (34%)

NPCs spawning around that spawngroup :
(Max range : 200)

soldungb-Overseer_of_Air00, range=47 (-652,-62,-105)

soldungb_28, range=187 (-677,-218,-81)

sonic_bat (50%)
sonic_bat (50%)
sonic_bat (50%)
sonic_bat (50%)

soldungb_15, range=175 (-595,-179,-90)

soldungb_11, range=188 (-551,-159,-93)

greater_kobold (50%)
greater_kobold (50%)

soldungb_10, range=152 (-557,-108,-90)

soldungb_46, range=104 (-714,-131,-92)

soldungb_47, range=94 (-595,-46,-107)

sonic_bat (50%)
sonic_bat (50%)

soldungb_48, range=95 (-706,-124,-78)

soldungb_49, range=119 (-594,-103,-98)

sonic_bat (33%)
sonic_bat (33%)
sonic_bat (34%)

soldungb_50, range=57 (-696,-87,-100)

sonic_bat (50%)
sonic_bat (50%)

soldungb_51, range=130 (-726,-155,-91)

lava_beetle (100%)

soldungb_52, range=112 (-712,-140,-78)

soldungb_53, range=188 (-751,-208,-68)

sonic_bat (33%)
sonic_bat (33%)
sonic_bat (34%)

soldungb_56, range=143 (-569,-110,-90)

soldungb_74, range=148 (-804,64,-104)

imp_protector (100%)

soldungb_75, range=105 (-683,75,-83)

soldungb_76, range=165 (-668,134,-83)

soldungb_77, range=148 (-651,114,-83)

soldungb_78, range=156 (-811,67,-104)

soldungb_79, range=152 (-791,82,-104)