Summer buzzing brings fall honey

The 2013 bee season is in full swing and the two hives in the back yard are thriving. Sadly, over the winter both hives did not survive (not sure what happened with the Blue hive, but in the Pink it appeared the Queen died). Thus, early this season I replaced both hives and was surprised by how quickly they took off. In addition, the difference in bee appearance is more pronounced this year. In the Blue hive the bees are large and dark while the Pink hive has small golden honeybees. So far walking around my yard and neighborhood I usually hear constant buzzing, which I'm sure are my bees out doing their work.  As the weather continues to heat up so will the activity of both hives!