In some cases, you may end up putting the appropriate counters on more than one permanent. For example, if you control a Buzzard-Wasp Colony when Hei Bai dies, you'll put the appropriate number of each kind of counter onto both the Buzzard-Wasp Colony and the target creature. If you target Buzzard-Wasp Colony with Hei Bai's last ability, it will receive counters from both abilities.