I am new and just have one hive which was a package I installed back in April. I fed it for a week after install and it went well. Haven't fed any since then. Today I decided to put a jar of sugar water feed out about 30 feet from the front of the hive as an experiment to see if a dearth was happening here assuming if one was on they would take the feed. Well to my surprise they took the feed but then an hour or two later I went out and there were bees everywhere flying in circles and seemingly very agitated. They would come at my face as soon as I left out the back door. They seemed to come at me and even chase me. It was so bad I had to put my bee suit on to go out and remove the feed jars. It took about an hour for them to calm down after this. Can anyone explain this behavior? I thought maybe they were acting like I was a robber or something. Obviously I figured out we must be in a dearth here now.