Our temps. in SW Arkansas are running into the triple digits - 102 to 110 each day, with no end in sight. My silkie Jethro is broody again. Has been for going on two weeks. I've made arrangements to have some eggs shipped in for her, but don't want them to hard boil on their way here. At what temps. is it safe to ship eggs? She's driving me nuts with her daily egg stealing and I'm getting really tired of having to remove her from the nest every day, several times a day.