Over this past late spring, I have noticed robins and wrens nesting in our yard.
One robin has nested over a spotlight which lies under an attic vent. Once the chicks were raised, the mother left the nest, and before we could remove the abandoned nest, a new mother robin moved in to an old nest!
This also took place with a mother wren that nested in a nest box by our thin wood line. After her young were raised, she left, and a second wren moved in to that same nest.
That saves time, energy, and materials! Similar to what many people are striving to do to help the environment.
– Craig Curtis