NPCs composing that spawngroup :

Burynai_burrower (33%)

Burynai_excavator (33%)

Burynai_Excavator (34%)

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

kurn_8, range=66 (99,9,4)

kurn_16, range=92 (169,31,-134)

lesser_charbone_skeleton (50%)
lesser_icebone_skeleton (50%)

kurn_32, range=99 (128,-151,-23)

Burynai_Excavator (100%)

kurn_34, range=54 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_37, range=97 (146,-147,-104)

kurn_38, range=96 (172,-137,-104)

kurn_39, range=80 (76,-113,-105)

kurn_40, range=33 (153,-74,-104)

kurn_56, range=78 (171,14,-120)

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

greater_scalebone (100%)

kurn_63, range=87 (43,-73,-108)

Burynai_excavator (100%)

kurn_64, range=83 (178,16,-120)

kurn_76, range=95 (223,-41,-118)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_88, range=42 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_93, range=98 (29,-50,-39)

Burynai_excavator (100%)

kurn_94, range=68 (67,-19,-39)

kurn_98, range=25 (104,-44,-49)

kurn_99, range=37 (124,-14,-49)

kurn_107, range=21 (121,-71,-24)

kurn_109, range=58 (143,-108,-24)

kurn_114, range=53 (162,-92,-24)

kurn_146, range=96 (60,-120,-40)

kurn_160, range=82 (66,3,9)

greater_skeleton (100%)

kurn_174, range=90 (45,-86,130)

kurn_180, range=47 (81,-49,129)

a_skeletal_cook (25%)
thick_boned_skeleton (75%)

kurn_182, range=13 (137,-42,9)

scalebone_skeleton (100%)

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

greater_skeleton (100%)