NPCs composing that spawngroup :

Burynai_excavator (34%)

lesser_charbone_skeleton (33%)

lesser_icebone_skeleton (33%)

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

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

kurn_2, range=36 (124,-191,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_5, range=41 (103,-223,-102)

greater_scalebone (100%)
greater_scalebone (100%)

kurn_7, range=52 (129,-217,-22)

kurn_8, range=63 (108,-244,4)

kurn_10, range=35 (87,-218,-102)

kurn_17, range=81 (60,-259,-99)

Burynai_excavator (50%)
lesser_charbone_skeleton (50%)

kurn_32, range=51 (128,-151,-23)

Burynai_Excavator (100%)

kurn_33, range=93 (172,-225,-102)

Burynai_sapper (100%)

kurn_35, range=95 (80,-278,-99)

kurn_37, range=67 (146,-147,-104)

kurn_38, range=94 (172,-137,-104)

kurn_39, range=71 (76,-113,-105)

kurn_42, range=88 (1,-174,-109)

kurn_87, range=32 (71,-211,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_89, range=62 (151,-190,-25)

kurn_109, range=92 (143,-108,-24)

kurn_144, range=14 (75,-187,-23)

kurn_145, range=50 (46,-156,-40)

Burynai_Excavator (50%)
greater_scalebone (50%)

kurn_146, range=69 (60,-120,-40)

kurn_156, range=26 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_157, range=82 (11,-157,-109)

kurn_161, range=96 (0,-221,90)

greater_scalebone (90%)
undead_crusader (10%)

kurn_165, range=65 (34,-219,132)

kurn_166, range=69 (23,-161,132)

kurn_168, range=91 (0,-160,132)

kurn_175, range=42 (52,-163,124)

kurn_176, range=71 (63,-250,124)

kurn_178, range=28 (116,-175,124)

kurn_183, range=94 (41,-101,6)

greater_skeleton (100%)