with young ones when i go training put them in almost anything i don't like them siting around in it a quick shower is ok will put out the bath they love it i know what owen is saying about a damp loft and he is right but if its only a shower they will go for a quick fly after and dry off only reason i do it is more to do with i think the pigeon liking it also we cant wrap them up in cotton wool all of the time