Replacement tunnels for your Troyer Gourd add desirable porch space that martins LOVE! You can add the tunnel onto Troyer Horizontal Gourds with cling plate OR replace tunnels on either Troyer Vertical or horizontal gourds. Let us know which in the comments at check out if you need the Inner traction mat (horizontal) or the step up(vertical).
Choose SREH "Conley 2" (also known as Clubhouse entrance) or round. Now feature BUILT IN wing entrapment guard molded into the tunnel!The SREH tunnels will give your purple martins added protection from European Starlings. Round entrance works great to trap starlings when combined with the Troyer-Haskell trap (sold separately)

They are made to fit onto your Troyer purple martin gourds ONLY. Some slight modifications of the Troyer gourds with a tail prop will need to be made.