The Schwegler 3SV has a deep entrance hole which has been demonstrated to provide highly effective protection from predators such as cats and martens. The design also mimics natural nest sites and the large entrance hole results in a well-lit interior that encourages occupation. The nesting area is easily accessible by removing the front panel, making it easy to inspect and clean.
Built using wood-concrete; an exceedingly durable, rot-proof and breathable natural material designed to mimic the properties of natural nest sites, the 3SV nest box is available with 3 sizes of entrance holes:
34mm hole: Suitable for tits, redstarts, nuthatches, pied flycatchers, tree sparrows and sometimes even bats.
Oval hole (32 x 45mm): This will attract the same species as the 34mm hole, but is recommended when the box is being hung in more shaded areas such as ravines and thick woodland.
45mm hole: Especially intended for starlings although any of the species named may use it. They will, however, be ejected if there are any starlings in the vicinity.
For top tips on making your nest box a success, see our blog on Five FAQs About Attracting Birds to Your Nest Box.
* External dimensions: 28 x 19 x 23cm
* Diameter of interior nesting chamber: 14cm
* Entrance hole: 45mm diameter (round), 32 x 45mm (oval) or 34mm diameter (round)
* Weight: 4.8kg