Nature Done Wright

On Monday I asked:

Can you identify these two nests, removed during  spring nest-box cleaning?

Carol Flanagan wrote that the nest on the left is a House Wren nest, and the one on the right belongs to House Sparrows.  The nest on the left is absolutely a House Wren nest — from the Butterfly Garden.  She's probably right about the other one, too, although I always picture them messier. :- )    (Thanks, Carol!)