Not sure where to post this, so I put it here. I am going to sell hatching chicks in the spring. I have read the rules and regulations but I know my small local post office will flip out when I bring in chicks to ship! So, I have a few questions and a few things that I need to know I'm doing right... 1. I have found the box to ship chicks but it does not have a filter. the rules I read said it does not have to have a filter as long as they are day old chicks. Is this correct? 2. I always calculate my postage at home (I have a scale) and print it out. How do I calculate postage for chicks? Do I just weigh them in the box and then calculate it as priority mail? Is there a surcharge for chicks. A postal worker told me there was a surcharge. But the rules I am reading says there is no special handling charge on day old poultry as long as they're shipped first class or priority. So, I am thinking there would not be a surcharge? 3. Anything special I need to know about dealing with the post office to ship chicks? Thank you.