NPCs composing that spawngroup :

Burynai_Excavator (100%)

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

kurn_1, range=49 (135,-200,5)

kurn_2, range=39 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_5, range=75 (103,-223,-102)

greater_scalebone (100%)
greater_scalebone (100%)

kurn_7, range=66 (129,-217,-22)

kurn_8, range=95 (108,-244,4)

kurn_10, range=78 (87,-218,-102)

kurn_30, range=73 (201,-152,-22)

kurn_31, range=75 (202,-137,-22)

kurn_33, range=86 (172,-225,-102)

Burynai_sapper (100%)

kurn_34, range=60 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_37, range=18 (146,-147,-104)

kurn_38, range=46 (172,-137,-104)

kurn_39, range=63 (76,-113,-105)

kurn_40, range=80 (153,-74,-104)

kurn_43, range=50 (89,-183,-102)

kurn_87, range=82 (71,-211,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_88, range=73 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=44 (151,-190,-25)

kurn_107, range=80 (121,-71,-24)

kurn_109, range=45 (143,-108,-24)

kurn_114, range=68 (162,-92,-24)

kurn_144, range=64 (75,-187,-23)

kurn_145, range=82 (46,-156,-40)

Burynai_Excavator (50%)
greater_scalebone (50%)

kurn_146, range=74 (60,-120,-40)

kurn_156, range=76 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_165, range=53 (106,-200,124)

kurn_175, range=76 (52,-163,124)

kurn_178, range=26 (116,-175,124)

kurn_183, range=99 (41,-101,6)

greater_skeleton (100%)