Hey Gary,
I typically start feeding the bees 1 to 1 sugar water on March 1st. Since the weather has been pretty fair this year, I would expect the bee to really start flying in mid to late March. The bees will gather plenty of pollen in March and April. I believe they are getting it from the Pine trees. I did feed the bees pollen one year but it didn't really seem to make a difference.
Justin