Hi all I may need to ship out my 3 -2 1/2 month old standard sized cochins to TN--first ,where do I buy the shipping box and is there an easy thread or post that had any info how to calculate and get to as close to the real cost of shipping?? I have been on USPS and was lost and searched on the net to find info and I must be putting in the wrong info because nothing I have come up with was helpful-Even if I dont ship these birds this week I have to learn because I have some that are positively getting shipped in a bit. Thanks peeps and help would be great!