The worms, according to Mike Johns, set up intestinal and liver problems and lower the immunity of the bird , so that secondary problems arise and the bird cannot digest food.
The bees build up a store of honey during the summer which they eat through the winter. Beekeepers will take a surplus of honey from the hive, but won't take all the honey there is. They also feed the bees with sugar syrup after taking the honey to make sure the bees have enough to see them through the winter. Honey.
Usually bees collect pollen from entomophilous plants that produce and the nectar. But in some periods of the season (especially in the early spring) when the honey plants are not yet in bloom or very few of them are in bloom, bees take this food from wind-pollinated plants.