NPCs composing that spawngroup :

a_large_rattlesnake (100%)

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

oldcommons89125, range=141 (-549,2015,6)

oldcommons89126, range=194 (-622,2089,41)

oldcommons89129, range=55 (-613,1949,20)

oldcommons89133, range=100 (-692,1822,15)

oldcommons89134, range=101 (-690,1818,13)

oldcommons89135, range=106 (-701,1822,17)

oldcommons89136, range=108 (-697,1815,15)

oldcommons89137, range=118 (-732,1850,14)

oldcommons89139, range=128 (-672,1776,18)