These front panels will fit the Schwegler 1B nest box and also the 2F and 2M bat boxes. Available with 32mm, 26mm or oval entrance hole.
Entrance hole sizes:
* 32mm entrance hole will attract Great, Blue, Marsh, Coal and Crested Tit, Redstart, Nuthatch, Collared and Pied Flycatcher, Wryneck, Tree and House Sparrow and bats.
* 26mm entrance hole suits Blue, Marsh, Coal and Crested Tit and possibly Wren. All other species are prevented from using the nest box due to the smaller entrance hole.
* Oval entrance hole (29 x 55mm) suits Redstarts because more light enters the brood chamber. It is also suitable for all other species which nest in the 32mm boxes.