I'd lash out with a few thumbs up if not for my hate of birds nesting in my roof versus anything outside. They only nest outside when the others put up a no vacancy sign in my gutters.
However a slight modification, might get a small, if only as a reminder of WHY they would use my roof instead of the boxes.
Ok, 3/4 as I read (ugh) they were ornamental.
If your first cut is too short... Take the second cut from the longer end... LBD