Doing it now. Do you think I am being robbed?
If there isn't a flow on and you feed a hive there is a good chance they will be robbed. I do not feed my bees if there is a flow on or they have honey. If you want to know if you are in a dearth, take a feeder and place it at least 100 yards away from your hives. It won't take long before a lot of bees are all over it.
On the other hand I tore a hive, in an old truck tool box, apart right in my apiary with honey all over the place and none of the bees bothered it because there was a flow on.
You place the feeder a long way from your hives it because if they are too close, the bees do not tell the other bees where the food is, they just tell them it is close by, go find it. This is how it starts.