You are right that the stress goes both ways. Your way would highly stress me. I think that I was worried about a make shift temporary home which would/could be less than predator proof and more than likely quite a bit smaller than what they are used to. Plus it could be difficult to find a...
Truthfully, chickens hate change, it really stresses them. In the circumstances you are describing, it would be huge amount of change several times in a short to longish period of time. Stressing birds can weaken their disease resistance and by putting them in new and strange places they could...