March 31 installed two packages of bees in new medium 8 frame supers. Entrance is reduced to about an inch per instruction. Now the bees are returning from flights and having to fly around before finding space to re-enter. Do not think they are robbers as they are allowed to enter. We have checked and our Queens had been released. Plan on checking things out this weekend and wondered if the entrance should be enlarged. We are using a front feeder with the syrup. They have used 3 quarts each thus far but the trees are abundant in our area and we think pollen is available for them. Appreciate comments as this is a new venture for us.