i have been catching swarms for 4years now and this is the first time that the bees built there comb under the top cover. i have been dumping them into a deep with new foundation then putting on the top cover. but this time i added a deep on top of the bottom deep with out anything in it.the bottom has ten new frames with foundation in it. i did this last week, i did two swarms this way,thinking that so many bees would not be flying around by haveing the top box on like that. i went to check on them this morning and both hives have built the comb on the top cover. it was so heavy i couldn't hardly pick it up. how do i get them to move down to the bottom box? this is the first time it's hapened to me. give some advise.