Bird shackles

Exploration Stage: Greenhouse
From: Lady
Description: I would like to believe that the bird seller was just another bird seller, an unlucky one who had some misunderstanding. I understand your skepticism. You don't think the seller is who he says he is, do you? Take a look at his tools. I've seen "bird shackles" somewhere. Can you help me find it?
Completed: I thought it was a "bird shackle" for pigeons to wear to keep them from wandering off. These are the shackles of a hawk! And it even has the mark of the owner on it! I wonder if the seller even sells birds of prey?