Third hive gone

Warm out the other day so I lifted the lid on the last hive and found that only a handful of dead bees were left.  Lots of honey and pollen inside.  This hive had been re-queened this spring too.  It was active right up to the last bad freeze   Have no idea where they all went, kind of sad.  I guess we'll have to see how the new batch does when they come this spring.  Spoke to another bee keeper from up in Ithaca and he says they have lost over 100 hives so far.  He says he's never seen it this bad.  Will have to monitor for mites more closely and treat just before winter.   Later