Spawns at 605, -73, 23 (19 of 37 spawns here) -751, -633, 9 (2 of 8 spawns here) 955, -1905, -6 (seen once) (1 of 4 spawns here) -914, -1696, 19 (seen once) (1 of 4 spawns here) 369, -1648, -6 (seen once) -834, -962, -55 (seen once) 847, -1932, -7 (seen once) (1 of 5 spawns here) 801, -1303, -15 (seen once) 1, -481, 1 (seen once) 796, -956, 36 (seen once) 471, -1820, 66 (seen once) -231, -1296, 4 (seen once) (1 of 4 spawns here) -641, -1594, 85 (seen once) -211, -1198, -5 (seen once) 36, -738, 5 (seen once) (1 of 2 spawns here) -800, -936, -54 (seen once) 716, -1434, -43 (seen once) (1 of 2 spawns here) -816, -1566, 27 (seen once) (1 of 2 spawns here) -296, -610, -5 (seen once) 637, -1482, -20 (seen once) (1 of 3 spawns here) 13, -1084, -31 (seen once) -421, -1002, -26 (seen once) -359, -670, -35 (seen once) (1 of 4 spawns here) -819, -1506, 21 (seen once) -4, -2132, 1 (seen once) (1 of 2 spawns here) -29, -806, 1 (seen once) 754, -1881, -7 (seen once) 878, -2053, -7 (seen once) (1 of 3 spawns here) 316, -720, 60 (seen once) (1 of 4 spawns here) 726, -1086, 26 (seen once) (1 of 5 spawns here)
Show 27 more spots and 5 more spots on the map
As /loc gives them: Y, X, Z, the most used first; nearby spawns share a spot, and one seen in a single visit may be where the mob had been pulled to.