NPCs composing that spawngroup :

a_cavern_grizzly (34%)

a_cavern_grizzly (33%)

a_toiling_mariner (33%)

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

nedaria1820071, range=61 (1812,-938,34)

a_cavern_grizzly (50%)
a_silverfur_wolf (50%)

nedaria1820072, range=90 (1747,-949,44)

a_cavern_grizzly (50%)
a_cavern_grizzly (50%)

nedaria1820073, range=61 (1741,-870,39)