too many if,s , but,s , and maybe yet . if weather is poor most days yet its dry 5 am one morning ,thay may go out then ? etc etc . i can remember a "bad week" before rained Monday till Thursday almost non-stop ,i put them out Monday am ,and pm for them to fly only 10 minutes each time ,locked up all week .most tried theres out in the rain .i never let them out on a Friday , but this week it was good ,so kicked them out am ,and went out for the day .let in late afternoon ,basketed for a 168 mile race .most members had a lot missing at clocks , all mine homed fine .