You would have to euthanize the animal first. After that you'd keep the animal in the fridge - do not freeze her - in a garbage bag and send her in a Styrofoam cooler with an ice pack - a quick tip, ask around at your local pharmacies as they get disposable ice packs packed in with shipments of medications that require refrigeration. They just throw them away when they're done so if you ask nicely they might give you some if they have any. My state has a form that you need to send in with the bird so you'd put that in as well, but follow the directions of your state's lab. From there you'd mail or drop her off. Again, check what that particular lab wants you to do and if in doubt, call and ask them