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.
Many of the solitary bees are oligolectic, and are found flying only during the flowering season of their favorite plants. All bees require protein (pollen) and sugar (nectar); only females gather pollen and nectar for the larvae in their nests.