NPCs composing that spawngroup :

Burynai_Excavator (33%)

Burynai_excavator (33%)

Burynai_Excavator (34%)

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

kurn_1, range=99 (48,-113,134)

kurn_5, range=68 (29,-139,106)

greater_scalebone (100%)
greater_scalebone (100%)

kurn_7, range=99 (-90,-254,3)

kurn_8, range=99 (-90,-254,4)

kurn_29, range=51 (-65,-212,3)

kurn_42, range=28 (1,-174,-109)

kurn_63, range=68 (-24,-109,-105)

Burynai_excavator (100%)

kurn_69, range=63 (-7,-117,-105)

kurn_70, range=50 (-72,-155,-105)

kurn_73, range=98 (-108,-233,-23)

kurn_80, range=54 (-72,-208,-23)

kurn_82, range=99 (-41,-276,-23)

kurn_86, range=97 (10,-87,-106)

kurn_96, range=82 (11,-104,-40)

Burynai_Excavator (50%)
greater_skeleton (50%)

kurn_113, range=80 (-87,-231,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_117, range=92 (-31,-85,-30)

Burynai_Excavator (50%)
Burynai_Excavator (50%)

kurn_138, range=40 (-50,-210,-23)

kurn_139, range=14 (-41,-176,-23)

kurn_140, range=38 (-56,-151,-23)

Burynai_burrower (100%)

kurn_141, range=57 (1,-128,-23)

Burynai_excavator (50%)
Burynai_Excavator (50%)

kurn_142, range=31 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

kurn_145, range=75 (46,-156,-40)

Burynai_Excavator (50%)
greater_scalebone (50%)

kurn_156, range=95 (66,-197,-104)

Burynai_excavator (50%)
Burynai_sapper (50%)

kurn_157, range=42 (11,-157,-109)

kurn_161, range=51 (0,-221,90)

greater_scalebone (90%)
undead_crusader (10%)

kurn_162, range=59 (-48,-121,132)

kurn_163, range=44 (-10,-218,132)

kurn_164, range=78 (-83,-232,123)

kurn_165, range=74 (34,-219,132)

kurn_166, range=52 (23,-161,132)

kurn_167, range=59 (-6,-121,132)

kurn_168, range=31 (0,-160,132)

kurn_169, range=96 (0,-270,132)

kurn_171, range=60 (-83,-200,123)

kurn_172, range=64 (-89,-159,88)

kurn_173, range=36 (-55,-201,88)

kurn_175, range=80 (52,-163,124)

kurn_276925, range=47 (-50,-219,134)

greater_skeleton (90%)
undead_crusader (10%)

kurn_276926, range=40 (-28,-218,134)

greater_scalebone (90%)
undead_crusader (10%)