Last year, the children built three small birdhouses from kits that they received as gifts. The finished houses were quite cute and one of them was placed (hanging from a piece of string) in one of the crabapple trees in the garden for decoration.
Recently we discovered that "someone" had moved in. :-)
"Someone" turned out to be a pair of House Wrens, who have taken possession of the decorative birdhouse and have filled it with twigs and bits of grass. They are a busy pair; in and out of the house all day long, and quite vocal if anyone dares to go near their abode.
"Is the coast clear???"