NPCs composing that spawngroup :

Burynai_burrower (25%)

Burynai_Excavator (25%)

Burynai_excavator (25%)

Burynai_excavator (25%)

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

kurn_1, range=53 (-121,-186,6)

greater_skeleton (100%)
greater_skeleton (100%)

kurn_7, range=49 (-90,-254,3)

kurn_8, range=94 (-142,-272,4)

kurn_20, range=87 (-138,-151,-117)

kurn_27, range=77 (-149,-208,-23)

kurn_29, range=8 (-65,-212,3)

kurn_42, range=80 (1,-174,-109)

kurn_70, range=53 (-72,-155,-105)

kurn_73, range=43 (-108,-233,-23)

kurn_82, range=74 (-41,-276,-23)

kurn_113, range=27 (-87,-231,-22)

Burynai_burrower (50%)
Burynai_excavator (50%)

kurn_130, range=77 (-143,-238,-23)

kurn_131, range=69 (-108,-268,-23)

kurn_138, range=22 (-50,-210,-23)

kurn_139, range=44 (-41,-176,-23)

kurn_140, range=59 (-56,-151,-23)

Burynai_burrower (100%)

kurn_142, range=52 (-20,-208,-23)

Burynai_burrower (50%)
greater_scalebone (50%)

kurn_143, range=54 (-27,-177,-23)

kurn_157, range=97 (11,-157,-109)

kurn_161, range=73 (0,-221,90)

greater_scalebone (90%)
undead_crusader (10%)

kurn_162, range=90 (-48,-121,132)

kurn_163, range=62 (-10,-218,132)

kurn_164, range=26 (-83,-232,123)

kurn_168, range=86 (0,-160,132)

kurn_169, range=95 (0,-270,132)

kurn_171, range=13 (-83,-200,123)

kurn_172, range=51 (-89,-159,88)

kurn_173, range=18 (-55,-201,88)

kurn_181, range=69 (-71,-277,4)

kurn_276925, range=24 (-50,-219,134)

greater_skeleton (90%)
undead_crusader (10%)

kurn_276926, range=45 (-28,-218,134)

greater_scalebone (90%)
undead_crusader (10%)