How do you sic a parrot on a guild emissary in sims 3 medieval?

You can buy a parrot from the village shop. Or you can buy a bird perch in one of the decor categories and buy a parrot from that, too. Once you have the parrot then you get a whistle in your inventory to call your parrot out once you are near the Emissary. Then click on the parrot and there should be a choice to Sic Parrot On... and you can choose Emissary.