These wood-concrete front panels with a metal guard to deter martens can be ordered separately for Box No. 4 (manufactured from 1980 onwards).
The layout of the holes in the wood-concrete front panels and the distances between them have to match to allow them to be connected to the metal protective panel. For this reason only complete replacement sets can be supplied.
80 x 90 mm
Tengmalm's Owl, Stock Dove, Pygmy Owl and Hoopoe. Black, Green and Grey Woodpeckers will sometimes spend the night in these boxes too.