Oooh. good info. I 've heard people using the gro-gel stuff, but that seems more practical. I know that USPS technically says "no food or water" but I think the intent is to not make a mess, and an apple/orange sure wouldn't.I ship nearly everywhere, just cut an apple or orange in half and place in the box with the birds for the food and moisture content they do very well. I have never had a problem with them that way.
I checked your profile, and maybe you've posted it before, but do you have a site, or do all your BYC business via PM?