It seems a fun idea to have a house-swap for vacation between chicken owners. I would love to do it, only how do we figure out that the other chicken owners are not psycho.

I mean this respectfully, but it would be a great idea. I actually typed in "vacation" to see if this occurred already. We live in Seaside, CA, near Pebble Beach, Carmel, Monterey - on the Central Coast of California. We would exchange houses for 4 nights within 7 hours of hear or longer for a 2 week vacation. We have one greyhound, one cat, and 4 chickens to care for and would want to trade with similar.
Ideally, trade with a military or law enforcement family.
Hmmm, where would I like to visit?
Nearby:
Napa, Geurneville, Santa Barbara.
Farther away for longer trade:
Portland, Seattle,
REALLY FAR - I'D LOVE TO STAY IN CENTRAL FRANCE FOR 3 WEEKS!
