Many Bluebirds (Sialia sialis) gathered at the birdbath today. They live here in Virginia all year. During the summer they eat insects and there is plenty for them to eat here in the winter too, including the fruit of Eastern Red Cedar, Bayberry, Flowering Dogwood, Hawthorn, Holly, Mistletoe, Pokeberry, Serviceberry, Sumac, Winterberry, Wild Grape, Hackberry,…