Construction Zone

By the signs in my yard, Spring is coming. The birds are singing in the trees and bushes and creating a flurry of activity as they gather materials to build their nests.

Last year a group of common sparrows built a nests under the deck, and yesterday, I noticed that they are putting an extension on the old nest. Usually, I remove the old nest in the Fall because I always thought birds would not reuse a nest. Now I am curious if this nest and its addition will be used.