We do the same basic thing. Our hens begin their life in our house. They are handled daily, fed live meal-worms as treats from our hands, and are very tame.
They move outside once they are big enough and the tameness persists. My gf sometimes sits on a camp chair in the chicken yard and they hop up onto her lap for attention.
They normally lay for 5 or so years, then die three to five years later. They get buried in our pet cemetery with full honors.
Not USPS, but we sometimes ship great heaping mounds of chicks. Most often chickens, but sometimes turkeys or ducks.
They will be packaged in flat cardboard boxes about 2’ x 3’ x 4" tall with small airholes and 50 or 100 chicks in each box. When we get a shipment it’ll be 50 or 100 boxes of these things, all cheeping & milling around in there.
Apparently the trick is the shipper feeds and waters them then gives them some time to shit, then packs them into the boxes with a layer of wood shavings. Since birds innards are designed for throughput, not storage, as long as you don’t feed or water them again they (mostly) won’t poop or pee enroute. Which keeps the stench level down a lot. As long as we get them where they’re going within about 24 hours most of them survive just fine.
It’s always funny to go out to the aircraft and there’s a baggage cart sitting there making all that cheep, cheep, cheep noise.
The Post Office calls you?! Like, on the telephone? How does that work? How do they get your number? Is this in a very rural setting without daily delivery?
Not that I would’ve remembered this bit of knowledge otherwise, but don’t all birds (paging Colibris) excrete a special something which is a bit of both and that’s that?
Birds excrete nitrogenous waste as uric acid, which is semisolid, instead of urea as in mammals, which requires more water to dispose of. Uric acid is the white part of bird droppings. (The dark bit in the middle of a dropping is food residue, the equivalent of feces.)
I have an African Spur-Thighed tortoise. His diet is very low in protein, so although he excretes his nitrogenous waste as uric acid, there is very little of it. Instead of some pastey white material passed with each elimination, he passes a few small “stones” of material every week or so. He also passes excess water on occasion.