I see lots of hatching eggs being shipped from various sites, but I never see any recommendations on who shouldn't order due to cold. I know that priority mail commonly takes up to 3 days and even more on occasion. It would seem impossible to keep the egg temp much above 35-40 degrees when taking this long to ship to a cold northern state (I'm in a cold part of NY). Does anyone know how low egg temp can go before they will not hatch? It seems that it might be very important to make sure the shipper is within one day priority mail shipping unless outside temps are above a particular point. I'd like to get an early start on some new stock, but there's no sense in getting in eggs that have little chance. I see some sellers saying they don't start shipping until April. Might this be the time frame when it's safe vs when they'll have eggs available?