English (House) Sparrow
Huge balls of grasses, weeds or trash, with the opening on the side of nest. Some include feathers, hair or string. Nests are noticably messy. Eggs are a white to greenish white with a slight gloss and dotted with grays and browns. 3-7 eggs, commonly 5.
REMOVE THIS NEST!
Picture Courtesy of Peterson Field Guide Eastern Birds’ Nests