Please purchase one test per feather sample you will be submitting. Test will not be marked as fulfilled until you receive a result. You will not be charged if we are not able to get a definitive result from your sample. Please make sure your samples are clearly labeled so results stay accurate. Please place each sample in a separate clear plastic bag to reduce risk of contamination. Feathers should be freshly plucked from the breast and include the quick. Please include at least three feathers. Please register your sample through our members area when you mail them. This helps us plan and prepare to process your order.