NPCs composing that spawngroup :

Burynai_Excavator (33%)

Burynai_excavator (34%)

greater_skeleton (33%)

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

kurn_11, range=81 (-172,-30,4)

greater_scalebone (50%)
greater_skeleton (50%)

kurn_18, range=38 (-70,30,-39)

Burynai_excavator (100%)

kurn_44, range=97 (-9,29,-116)

kurn_72, range=69 (-83,-48,-107)

Burynai_excavator (100%)

kurn_90, range=96 (-75,-73,-30)

kurn_91, range=76 (-30,8,-39)

kurn_111, range=53 (-146,-18,-23)

Burynai_Excavator (100%)

kurn_113, range=37 (-114,-19,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_125, range=82 (-186,0,-23)

kurn_133, range=80 (-51,77,-39)

kurn_134, range=48 (-84,61,-39)

Burynai_Excavator (50%)
Burynai_Excavator (50%)

kurn_135, range=32 (-138,19,-39)

kurn_136, range=74 (-84,-53,-30)

kurn_149, range=43 (-63,9,-30)

kurn_150, range=54 (-111,72,-39)

Burynai_excavator (100%)

kurn_152, range=34 (-88,-11,-30)

kurn_153, range=52 (-62,-10,-30)

kurn_154, range=76 (-164,-32,-23)

Burynai_Excavator (50%)
Burynai_excavator (50%)

kurn_160, range=55 (-53,1,9)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_166, range=59 (-50,39,104)

kurn_179, range=65 (-170,31,4)

kurn_183, range=93 (-62,-65,129)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_184, range=48 (-85,61,106)

greater_skeleton (50%)
scalebone_skeleton (50%)

kurn_185, range=73 (-39,-12,104)

kurn_186, range=67 (-58,-30,104)

kurn_188, range=93 (-13,29,104)

greater_skeleton (50%)
scalebone_skeleton (50%)

kurn_193, range=73 (-35,31,-39)

thick_boned_skeleton (100%)

#Crackling_Bones_189490, range=97 (-31,80,-39)

#Crackling_Bones (25%)
lesser_charbone_skeleton (75%)