NPCs composing that spawngroup :

an_owlbear_bonegrinder (8%)

an_owlbear_bonegrinder (8%)

an_owlbear_bonegrinder (8%)

an_owlbear_bonegrinder (9%)

an_owlbear_gatherer (8%)

an_owlbear_gatherer (8%)

an_owlbear_gatherer (8%)

an_owlbear_ravager (8%)

an_owlbear_ravager (8%)

an_owlbear_ravager (9%)

a_patrolling_owlbear (9%)

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

HollowshGremlin1328228, range=153 (-1550,-650,-123)

a_grimling_lookout (100%)

HollowshGremlin1328167, range=124 (-1344,-835,-128)

a_grimling_herder (100%)

HollowshGremlin1328104, range=22 (-1443,-740,-102)

a_grimling_herder (50%)
a_grimling_lookout (50%)

HollowshGremlin1328070, range=112 (-1532,-690,-106)

HollowshGremlin1328069, range=155 (-1547,-645,-126)

HollowshGremlin1328068, range=123 (-1350,-841,-128)

HollowshGremlin1328067, range=0 (-1445,-762,-117)

HollowshOwls2428068, range=123 (-1350,-841,-128)

HollowshOwls2428069, range=155 (-1547,-645,-126)

HollowshOwls2428070, range=112 (-1532,-690,-106)

HollowshOwls2428104, range=22 (-1443,-740,-102)

an_owlbear_ravager (50%)
an_owlbear_ravager (50%)

HollowshOwls2428167, range=124 (-1344,-835,-128)

a_patrolling_owlbear (100%)

HollowshOwls2428228, range=153 (-1550,-650,-123)

HollowshWolves1328067, range=0 (-1445,-762,-117)

HollowshWolves1328068, range=123 (-1350,-841,-128)

HollowshWolves1328069, range=155 (-1547,-645,-126)

HollowshWolves1328070, range=112 (-1532,-690,-106)

HollowshWolves1328104, range=22 (-1443,-740,-102)

a_sonic_ravager (50%)
a_sonic_stalker (50%)

HollowshWolves1328167, range=124 (-1344,-835,-128)

a_sonic_stalker (100%)

HollowshWolves1328228, range=153 (-1550,-650,-123)

a_sonic_hunter (100%)