This is the first winter for the swarm I housed last summer. Now that the rain has stopped and the afternoons are warmer, I notice that the bees are out gathering nectar from a patch of crocuses in the garden. Is there anything I need to watch out for? Should I feed them and if so, when? This is an anxious issue as last year there was a warm period when my previous colony became active again early in the spring, followed by a 3 week period of night temperatures of below -10 and daytime highs of about -1. when the true spring came the bees had all starved. Obviously I’m very reluctant to lift the lid (I have a horizontal topbar hive) in order to give them syrup but equally I would like to try and prevent them running out of food when they are so close to having survived the winter. All and any advice would be really welcomed.