Some of the plastic poultry traveling crates are advertised at only 11" or 15" high. Is it best not to have enough room for the chickens to stand erect? What if the birds are about to be shown? Whether I decide to buy or build the crates, I need to know what height is best. I don't have a cap on my truck, just a vinyl Tonneau cover.
If I'm not showing, just transporting (a 6 hour drive), is it okay to do so in dog crates anchored well, and covered with a tarp, in an open pickup bed?