Mourning Cloak chrysalis question
This is only our second spring at our new home and we are once again blessed with Mourning Cloak caterpillars using our house to shelter on as they change to chrysalises and then their beautiful butterfly selves. Last year, we only had a dozen or so, and while I've lived my entire life in Texas, this was my first year to see the Mourning Cloak Butterfly. I fell in love. I was overjoyed when about 5 days ago, the caterpillars started making their way to our house again. By Thursday, we had over a 100 on the house. Today, we have a little over 70 chrysalises thanks to the birds finding them and eating them. I had planned on letting nature take its course - it is the cycle of life - but I can't stand to have this many killed. I'm afraid we won't have that many survive if I don't move them. They are grouped rather heavily in one area under the overhang and the birds must think they have found a real smorgasbord of a feast!
I've found the information on how to remove them and how to reattach them, but I can't find the information on whether the container I have found for them to hatch in needs to be ventilated or where is the best place to put them in the house (ie in front of a window, etc). I would appreciate those with experience in moving and hatching butterflies to give me some tips.
I am in central East Texas. Thanks for your help!