NPCs composing that spawngroup :

Burynai_sapper (50%)

lesser_icebone_skeleton (50%)

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

kurn_16, range=136 (169,31,-134)

lesser_charbone_skeleton (50%)
lesser_icebone_skeleton (50%)

kurn_30, range=174 (201,-152,-22)

kurn_31, range=162 (202,-137,-22)

kurn_34, range=168 (156,-98,-103)

lesser_charbone_skeleton (100%)

kurn_38, range=181 (172,-137,-104)

kurn_40, range=161 (153,-74,-104)

kurn_56, range=130 (171,14,-120)

kurn_57, range=112 (188,-26,-118)

greater_scalebone (100%)

kurn_58, range=131 (180,46,-119)

Burynai_Excavator (50%)
Burynai_sapper (50%)

kurn_64, range=124 (178,16,-120)

kurn_65, range=186 (166,121,-116)

kurn_75, range=66 (248,-49,-118)

Burynai_sapper (50%)
lesser_icebone_skeleton (50%)

kurn_76, range=83 (223,-41,-118)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_77, range=25 (284,-28,-120)

Burynai_excavator (50%)
greater_scalebone (50%)

kurn_79, range=25 (300,17,-118)

Burynai_Excavator (50%)
Burynai_sapper (50%)

kurn_88, range=162 (155,-83,-24)

Burynai_burrower (50%)
Burynai_Excavator (50%)

kurn_95, range=168 (224,142,-39)

Burynai_excavator (100%)

kurn_97, range=177 (128,-51,-49)

kurn_98, range=199 (104,-44,-49)

kurn_99, range=176 (124,-14,-49)

kurn_104, range=196 (154,123,-39)

kurn_107, range=189 (121,-71,-24)

kurn_109, range=186 (143,-108,-24)

kurn_114, range=161 (162,-92,-24)

kurn_115, range=175 (137,58,-39)

Burynai_Excavator (50%)
lesser_icebone_skeleton (50%)

kurn_174, range=178 (130,47,104)

kurn_182, range=166 (137,-42,9)

scalebone_skeleton (100%)