NPCs composing that spawngroup :

Burynai_Excavator (25%)

Burynai_excavator (25%)

Burynai_Excavator (25%)

Burynai_excavator (25%)

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

kurn_8, range=33 (99,9,4)

kurn_16, range=64 (169,31,-134)

lesser_charbone_skeleton (50%)
lesser_icebone_skeleton (50%)

kurn_34, range=89 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_40, range=66 (153,-74,-104)

kurn_56, range=55 (171,14,-120)

kurn_57, range=65 (188,-26,-118)

greater_scalebone (100%)

kurn_58, range=82 (180,46,-119)

Burynai_Excavator (50%)
Burynai_sapper (50%)

kurn_63, range=99 (43,-73,-108)

Burynai_excavator (100%)

kurn_64, range=61 (178,16,-120)

kurn_88, range=75 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_94, range=57 (67,-19,-39)

kurn_97, range=37 (128,-51,-49)

kurn_98, range=36 (104,-44,-49)

kurn_107, range=57 (121,-71,-24)

kurn_109, range=95 (143,-108,-24)

kurn_114, range=86 (162,-92,-24)

kurn_115, range=74 (137,58,-39)

Burynai_Excavator (50%)
lesser_icebone_skeleton (50%)

kurn_160, range=60 (66,3,9)

greater_skeleton (100%)

kurn_174, range=61 (130,47,104)

kurn_180, range=55 (81,-49,129)

a_skeletal_cook (25%)
thick_boned_skeleton (75%)

kurn_182, range=30 (137,-42,9)

scalebone_skeleton (100%)

kurn_189, range=69 (93,48,104)

kurn_190, range=92 (93,73,104)

kurn_191, range=74 (109,58,-39)

an_undead_jester (20%)
thick_boned_skeleton (80%)