Basic physics: direct sunlight = heat gain by radiation = warm happy bees!
That said neither hive was particularly active, so I thought that might mean my girls are eating the syrup I added, instead of foraging outside. Nope! The syrup remains pretty much un-touched. Maybe now perhaps it is time to give up the syrup feeding, remove the feeder and put on the insulated top cover and shut up for winter. I’ll let nature do its thing, and with luck, both hives will survive the winter and will look strong going into 2011! Shutting them up does not of course exclude some winter feeding with Pollen Patties or “Ted’s Mush” (if it gets warm enough to open the hive), but I reckon I won’t start looking into that until Late January at the earliest!
Better get thinking about some more equipment….