A Needed Housecleaning

Yesterday, among other tasks, I conducted a special housecleaning---at the nest boxes out back.  And that would be at the expense of some pesky House Wrens.  Seems these little devils hope to crimp the competition by building dummy nests in boxes like mine, and in fact they did to two of my best boxes.  Satisfied that these are dummies---the birds have not been by in at least a week, I took 'em out (the nests, not the birds!).  Those boxes are available for use again, or so I hope.  And if the wrens decide to waste their time building another dummy, I will be at the ready.  Make my day, wrens!