I am ordering chicks and have the option of Express Mail or Priority Mail COD for shipping. If I go with Express Mail I can save the COD charge for the Priority Mail. It seems to me that with the Express Mail being double or more the Priority Mail that the saving of the COD fee isn't cost effective. Am I not doing the math correctly here? Does anyone have experience with both types of shipping with chicks? They are close enough to me that either shipping will be 2 days so delay in shipping isn't a concern. All responsed appreciated.