Another way I feel better about leaving is doing all I can to make life in the pen interesting... a seed/feed block... a bale or two of straw to jump up and down from... a few branches as new, temporary roosts... waterer, in case for some reason someone doesn't show up for a day... a whole pumpkin , or something similiar, for food and activity. I can even leave mine for a weekend without anyone checking on them when I do these things for them. They may not be as happy without their regular routine, but they will be fine and thrilled when you come back. I also don't let mine free range while I'm gone because they are not as familiar with my chicken sitter and might get freaked by a strange person putting them in. Have a great trip!