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.
In winter, robins are nomadic. They fly in flocks and eat the berries of trees and shrubs that hold their fruit through the winter, including red cedar, American holly, hawthorn, and certain dogwood and crab apple species. As they deplete the food sources in one location, they move on in search of a new supply. Habitat and Range